need help x-y=11 2x+y=19

Answers

Answer 1

Answer:

(10, - 1 )

Step-by-step explanation:

x - y = 11 → (1)

2x + y = 19 → (2)

adding (1) and (2) term by term will eliminate y

(x + 2x) + (- y + y) = 11 + 19

3x + 0 = 30

3x = 30 ( divide both sides by 3 )

x = 10

substitute x = 10 into either of the 2 equations and solve for y

substituting into (2)

2(10) + y = 19

20 + y = 19 ( subtract 20 from both sides )

y = - 1

solution is (10, - 1 )


Related Questions

What is the height of the tree?

Answers

Answer:

72 ft

Step-by-step explanation:

Alright so two ways you can solve this, but the easier one (imo) is to find the scale factor by doing 24/2 since its an enlargement, and multiplying 6 by the scale factor (12)

neighborhood insurance sells fire insurance policies to local homeowners. the premium is $280, the probability of a fire is 0.1%, and in the event of a fire, the insured damages (the payout on the policy) will be $270,000. required: a. make a table of the two possible payouts on each policy with the probability of each.

Answers

To make a table of the two possible payouts on each policy with the probability of each, we can use the following information:

The premium is $280.

The probability of a fire is 0.1% or 0.001.

In the event of a fire, the insured damages will be $270,000.

There are two possible outcomes:

No fire occurs:

The probability of this outcome is 1 - 0.001 = 0.999.

The payout is $0.

Fire occurs:

The probability of this outcome is 0.001.

The payout is $270,000.

Therefore, the table of the two possible payouts on each policy with the probability of each is:

Outcome Probability Payout

No fire           0.999            $0

Fire                   0.001       $270,000

Note that the expected value of the policy can be calculated as the sum of the products of the probabilities and payouts:

Expected value = (0.999 x $0) + (0.001 x $270,000) = $270.

A hexagon with an area of 75 square inches is dilated by a scale factor of 3. What is the area of the new hexagon?

Answers

From the given information provided, the area of the new hexagon when dilated by scale factor is 675 square inches.

When a polygon is dilated by a scale factor of k, its area is multiplied by k².

A hexagon is a six-sided polygon. It is a flat shape with straight sides, and all six of its angles add up to 720 degrees.

In this case, the hexagon is being dilated by a scale factor of 3, so the area of the new hexagon will be:

Area of new hexagon = (scale factor)² x Area of original hexagon

Area of new hexagon = 3² x 75

Area of new hexagon = 9 x 75

Area of new hexagon = 675 square inches

Therefore, the area of the new hexagon is 675 square inches.

Learn more about area here: brainly.com/question/25292087

#SPJ4

which of the following is true of a meta-analysis? in a meta-analysis, there is an manipulation of variables. in a meta-analysis, random assignment is required. in a meta-analysis, only a certain amount of studies can be used. in a meta-analysis, we can look for gaps in the research, based on a statistical analysis.

Answers

In the following question, among the given options, The statement "In a meta-analysis, there is a manipulation of variables" is false. hence meaning that the rest of them are stated to be true.

In A meta-analysis is a statistical technique for synthesizing the findings of multiple studies. It involves combining the results from multiple studies, analyzing them, and presenting a summary of the overall evidence. It does not involve manipulating variables or performing a random assignment. In a meta-analysis, any amount of studies can be used, and researchers can look for gaps in the research, based on a statistical analysis.

For more such questions on meta-analysis

https://brainly.com/question/14723190

#SPJ11

How many multiples of 2 are there between 176 and 389

Answers

There are 107 multiples of 2 between 176 and 389.

The first multiple of 2 within the range is the smallest multiple of 2 that is greater than or equal to the lower endpoint, which is 176. To find this, we divide 176 by 2:

176 ÷ 2 = 88

So the first multiple of 2 within the range is 88.

The last multiple of 2 within the range is the largest multiple of 2 that is less than or equal to the upper endpoint, which is 389. To find this, we divide 389 by 2:

389 ÷ 2 = 194.5

Since we are only interested in whole numbers, we round 194.5 down to the nearest integer, which is 194.

So the last multiple of 2 within the range is 194.

Now that we know the first and last multiples of 2 within the range, we can count how many multiples of 2 exist between them. To do this, we subtract the first multiple from the last multiple and add 1:

194 - 88 + 1 = 107

Therefore, there are 107 multiples of 2 between 176 and 389.

To know more about multiples here

https://brainly.com/question/5992872

#SPJ4

3- if we know that a patient received the antidepressant (desipramine), what is the probability that they relapsed?

Answers

The probability that a patient will relapse after receiving desipramine depends on a variety of factors, such as dosage, duration of treatment, and pre-existing mental health conditions.

Generally speaking, it is estimated that around 50-70% of people who take desipramine as an antidepressant will experience relapse within six months of treatment cessation.

However, this rate can be decreased through longer treatment periods and/or higher doses of medication.

Additionally, patients may also benefit from lifestyle changes, such as increased physical activity, increased social engagement, and improved dietary habits.

Taking all of these factors into consideration, it is difficult to determine the exact probability of relapse in any given case.

To know more about antidepressant  click on below link:

https://brainly.com/question/14307922#

#SPJ11

two different colored dice are rolled simultaneously. what is the probability of getting a sum of at least 3?

Answers

The probability of getting a sum of at least 3 when two different colored dice are rolled simultaneously is 5/6.

To calculate the probability of getting a sum of at least 3 when two different colored dice are rolled simultaneously, we need to list out all possible combinations of the dice and find out how many of them add up to at least 3. Let's begin:

Possible combinations when rolling two dice:

1 + 1, 1 + 2, 1 + 3, 1 + 4, 1 + 5, 1 + 62 + 1, 2 + 2, 2 + 3, 2 + 4, 2 + 5, 2 + 63 + 1, 3 + 2, 3 + 3, 3 + 4, 3 + 54 + 1, 4 + 2, 4 + 3, 4 + 55 + 1, 5 + 2, 5 + 36 + 1, 6 + 2, 6 + 3

Total number of combinations:

6 x 6 = 36.

Now, we need to find out how many of these combinations add up to at least 3.

We can ignore 1+1 because it's less than 3. The rest are as follows:

1 + 2, 2 + 1, 1 + 3, 3 + 1, 2 + 2, 1 + 4, 4 + 1, 2 + 3, 3 + 2, 1 + 5, 5 + 1, 2 + 4, 4 + 2, 3 + 3, 1 + 6, 6 + 1, 2 + 5, 5 + 2, 3 + 4, 4 + 3, 2 + 6, 6 + 2, 3 + 5, 5 + 3, 4 + 4, 3 + 6, 6 + 3, 4 + 5, 5 + 4, 4 + 6, 6 + 4, 5 + 5, 5 + 6, 6 + 5, 6 + 6.

Total: 30.

So, the probability of getting a sum of at least 3 when two different colored dice are rolled simultaneously is 30/36 or 5/6.

You can learn more about probability at

https://brainly.com/question/24756209

#SPJ11

Ms. Lopez draws two cylinders on the whiteboard. The first cylinder has a diameter of 6 inches and a height of 14 inches. The second cylinder has a diameter of 3 inches. If the second cylinder has the same ratio of diameter to height, what is its height?When Cara drives to work, it takes her 30 minutes to drive 15 miles. On her days off, she likes to drive to her favorite donut shop. It takes Cara 6 minutes to drive to The Dreamy Donut Shop at the same rate. How many miles away is The Dreamy Donut Shop?

Answers

The height of the second cylinder is 7 inches.

The Dreamy Donut Shop is 3 miles away from Cara's starting point.

For the first question, we can use the fact that the ratio of the diameter to the height is the same for both cylinders. The first cylinder has a diameter of 6 inches and a height of 14 inches, so its ratio is 6/14. If the second cylinder has the same ratio, then we can set up the equation

3/x = 6/14,

where x is the height of the second cylinder. Solving for x, we get

x = 7 inches.

Therefore, the height of the second cylinder is 7 inches.

For the second question, we can use the formula distance = rate × time. Since Cara drives at the same rate to both work and the donut shop, we can set up the equation

r × 0.5 = 15 for her commute to work, where r is her rate (in miles per minute). Solving for r, we get r = 30 miles per hour. Using the same formula for her trip to the donut shop, we get

r × 0.1 = d,

where d is the distance to the donut shop (in miles). Solving for d, we get

d = 3 miles.

Therefore, the Dreamy Donut Shop is 3 miles away from Cara's starting point.

Learn more about Cylinders:

https://brainly.com/question/23935577

#SPJ4

50 POINTS PLEASE HELP
IN YOUR OWN WORDS PLEASE:)

The purpose of filling out a W-4 is to make it easier for individuals to meet their tax liability by
paying income taxes as they earn income. Paying anticipated taxes from each paycheck
reduces the amount an individual owes when filing taxes and can even result in a tax refund.
To guarantee or increase the refund, individuals sometimes claim fewer allowances (to have
more income tax withheld) or request a specific additional amount to be withheld from each
paycheck.
Daniel's employer will automatically deduct taxes from Daniel's pay using the information on
the W-4 form that Daniel completed on his first day. From his W-4 form, Daniel's employer
determined that $75 needs to be withheld from each of Daniel's weekly paychecks, totaling
$3,900 for the year.
Compare Daniel's tax liability from part B, question 3, with the total amount withheld from his
check: $3,900 for the year. If Daniel wants a refund when he files his taxes, should he have
filled out his W-4 differently? Explain your reasoning.

Answers

Answer:

To determine if Daniel should have filled out his W-4 form differently to receive a refund, we need to compare his tax liability with the total amount withheld from his paychecks for the year.

If Daniel's tax liability for the year is less than $3,900, he will receive a refund when he files his taxes. If his tax liability is more than $3,900, he will owe additional taxes when he files his taxes.

If Daniel's tax liability is exactly $3,900, he will neither owe additional taxes nor receive a refund when he files his taxes.

Therefore, to determine if Daniel should have filled out his W-4 form differently, we need to compare his tax liability with $3,900.

If Daniel's tax liability from part B, question 3, is less than $3,900, he will receive a refund when he files his taxes, as the total amount withheld from his paychecks is more than his tax liability. In this case, Daniel may want to consider filling out his W-4 form differently to reduce the amount withheld from his paychecks and increase his take-home pay.

On the other hand, if Daniel's tax liability from part B, question 3, is more than $3,900, he will owe additional taxes when he files his taxes, as the total amount withheld from his paychecks is less than his tax liability. In this case, Daniel may want to consider filling out his W-4 form differently to increase the amount withheld from his paychecks and reduce the amount he will owe when he files his taxes.

If Daniel's tax liability from part B, question 3, is exactly $3,900, he will neither owe additional taxes nor receive a refund when he files his taxes, and his W-4 form is correctly filled out for his tax situation.

In summary, whether or not Daniel should have filled out his W-4 form differently to receive a refund depends on his tax liability compared to the total amount withheld from his paychecks. If his tax liability is less than the total amount withheld, he may want to reduce the amount withheld to increase his take-home pay. If his tax liability is more than the total amount withheld, he may want to increase the amount withheld to reduce the amount he will owe when he files his taxes. If his tax liability is exactly equal to the total amount withheld, his W-4 form is correctly filled out for his tax situation.

Write the numeral for nine hundred thousand and twelve.

Answers

Answer: 900,012

Step-by-step explanation:

Answer: 900,012

this is because, nine hundred thousand is shown as 900,000 in number form

and then you just add 12 to that number, making it 900,012

if you have heteroskedasticity such that the sample can be divided into groups with each group having a different error variance, what estimation technique should be used?

Answers

One possible technique to address heteroscedasticity with group-specific variances is the use of weighted least squares (WLS) estimation, where observations from each group are assigned weights that are inversely proportional to the variance of the error term in that group.

Heteroscedasticity refers to the situation where the variance of the error term in a regression model is not constant across different levels of the independent variable(s). This violates the assumption of homoscedasticity, which can lead to biased and inefficient estimates of the model parameters.

When the heteroscedasticity is related to group-specific variances, a possible solution is to use WLS estimation. This involves calculating weights for each observation based on the inverse of the estimated variance of the error term in its group. By doing so, observations with larger variances are given smaller weights, while observations with smaller variances are given larger weights, which effectively downweighs the influence of more variable observations.

The resulting WLS estimator is more efficient and less biased than the standard OLS estimator, and it can lead to more accurate inferences about the relationship between the independent and dependent variables. However, WLS requires the researcher to specify the appropriate weights for each observation, which can be challenging and subjective in practice.

For more questions like Heteroskedasticity visit the link below:

https://brainly.com/question/30463266

#SPJ11

8. A rectangular room is shown.
4x - 1
Tx
2
3x²+6.
A. (4x-1)-2x
B. (3x2+6) + (4x - 1) + x
C. (4-1)-(3x² + 6)
(3x²+6) + 2(4x-1) + 2x
-Door-
X-
4x-1
Port A: Which of the following expressions represents the perimeter of the room without the
door?
63x²+6)+(4x-1)x2+²x = (3x²+6) + 2(4x-1)+2x
Port B: What is the perimeter of the room without the door in simplest form? Show your
work.
The area of the room
without the door would be 14x+10 due to
simplifying at combining like terms of primeter: 2 (4x+1)+₂(3x+6)

I just need part b. But can someone make sure if part a and part b are correct?

Answers

Answer: 14x + 14

Step-by-step explanation: To find the perimeter of the room without the door, we need to add up the four sides. Using the simplified expression for the perimeter, which is 2(4x+1) + 2(3x+6), we can simplify further by distributing the 2:

2(4x+1) + 2(3x+6) = 8x + 2 + 6x + 12

Combining like terms, we get:

14x + 14

Therefore, the perimeter of the room without the door in simplest form is 14x+14.

Solve the system of equations.
2x+2y+ 6z = 8
5x+6y + 5z = 3
5x + 6y + 3z = 5
a. (x= 34, y =
-27,z = -1)
b. (x= 33, y=-26, z = 0)
c.
d.
(x = 35, y = -28, z = -2)
(x= 36, y=-29, z = 1)

Answers

The solution of the system of equations:

2x+2y+ 6z = 8

5x+6y + 5z = 3

5x + 6y + 3z = 5

Is the one in option a.

(x= 34, y = -27,z = -1)

How to solve the system of equations?

Here we have the system of equations:

2x+2y+ 6z = 8

5x+6y + 5z = 3

5x + 6y + 3z = 5

If we subtract the third equation from the second one we will get:

(5x + 6y + 5z) - (5x + 6y + 3z) = 3 - 5

5z - 3z = -2

We just removed two of the variables, so we can now solve this linear equation for z so we get:

2z = -2

z = -2/2

z = -1

We know that the value of z is -1, that is enough to identify the correct option because only one of these has z = -1  which is the first one, so that is the correct option.

Laern more about systems of equations at.

https://brainly.com/question/13729904

#SPJ1

the coefficient of correlation is a useful measure of the linear relationship between two variables. true false

Answers

The statement is true.

The coefficient of correlation, also known as the Pearson correlation coefficient, is a measure of the strength and direction of the linear relationship between two variables. It ranges from -1 to 1, with a value of -1 indicating a perfect negative correlation, a value of 0 indicating no correlation, and a value of 1 indicating a perfect positive correlation.

The coefficient of correlation is useful in many applications, including research, business, and finance. It allows us to quantify how closely related two variables are, which is important when analyzing data and making predictions.

For example, in finance, the correlation coefficient can be used to measure the degree of correlation between the returns of two assets, which is important when building diversified portfolios. It is important to note, however, that the coefficient of correlation only measures the strength and direction of the linear relationship between two variables.

It does not indicate causation, nor does it capture any non-linear relationships that may exist between the variables. Therefore, it should be used in conjunction with other analytical tools to fully understand the nature of the relationship between the variables.

For more details about variables click here:

https://brainly.com/question/17344045#

#SPJ11

how is graphing (0, 2) different from graphing (2, 0)​

Answers

Answer:  graphing 0,2 would place the 0 on the x-axis and 2 on the y-axis, whereas graphing 2,0 would place the 2 on the x-axis and 0 on the y-axis

Step-by-step explanation:

Answer:

Step-by-step explanation:

Graphing the point (0, 2) means plotting a point at the coordinates where the x-axis is located at 0 and the y-axis is located at 2. This means that the point would be located at the upper part of the y-axis.

On the other hand, graphing the point (2, 0) means plotting a point where the x-axis is located at 2 and the y-axis is located at 0. This means that the point would be located on the x-axis to the right of the origin.

In general, the order of the coordinates in an (x, y) pair represents the horizontal and vertical position of the point, respectively. Thus switching the order of the coordinates changes the position of the point on the coordinate plane.

an old piano has 88 keys, and 56 of them are out of tune, while the remaining keys are tuned properly. a child strikes a key on the piano at random. what is the probability that the child strikes a properly tuned key?

Answers

Answer: I think It is 63.64%. If I'm wrong I'm sorry.

Step-by-step explanation:

Ask yourself what is 56% out of 88%. I did it in my head, but I got 63.6363636% then I rounded it to 63.64%.

On a given planet, the weight of an object varies directly with the mass of the object. Suppose that an object whose mass is 5 kg weighs 25 N. Calculate the mass of another object that weighs 15 N

Answers

The weight of an object varies directly with the mass of the object therefore, the mass of the other object that weighs 15 N is 3 kg.

We can use the formula for direct variation, which states that if y varies directly with x, then y = kx, where k is the constant of variation. In this case, the weight y varies directly with the mass x, so we have:

y = kx

We are given that when x = 5 kg, y = 25 N. Substituting these values into the formula, we get:

25 = k(5)

Solving for k, we have:

k = 5

Now we can use this value of k to find the mass of another object that weighs 15 N. Let's call the mass of this object x2. We know that y2, the weight of the object, is 15 N. So we have:

15 = 5x2

Solving for x2, we have:

x2 = 3 kg

Therefore, the mass of the other object that weighs 15 N is 3 kg.

To learn more about mass Click here:
brainly.com/question/6199002

#SPJ4

Find the supplementary angles formed by the line y=3x-5 and the line 4x-3y=1

Answers

Answer:

= 55.3 degrees

Step-by-step explanation:

To find the supplementary angles formed by two lines, we need to find the angles formed by each line and then subtract the sum of those angles from 180 degrees.

Let's begin by finding the slope of each line. The first line y=3x-5 is in slope-intercept form,
where the slope is the coefficient of x, which is 3.

The second line 4x-3y=1 can be rearranged to slope-intercept form by solving for y:

4x - 3y = 1
-3y = -4x + 1
y = (4/3)x - 1/3

The slope of the second line is 4/3.

Next, we can find the angle formed by each line with the x-axis using the formula:

angle = arctan(slope)

where arctan is the inverse tangent function. We can use a calculator to find the angle in degrees.

For the first line, angle = arctan(3) ≈ 71.57 degrees.

For the second line, angle = arctan(4/3) ≈ 53.13 degrees.

To find the supplementary angles, we subtract the sum of these angles from 180 degrees:

supplementary angle = 180 - (71.57 + 53.13) = 55.3 degrees.

Therefore, the supplementary angles formed by the line y=3x-5 and the line 4x-3y=1 are 55.3 degrees.

m ∠ 1 = ( 7 x − 21 ) ° and m ∠ 2 = ( − 5 x + 75 ) ° , what is m ∠ 1 ?

Answers

The measure of ∠1 is 117° before that we have to find out the angle of x, the values are in degrees.

What is an angle?

An angle is the geometric measure of the space between two intersecting lines or planes, usually expressed in degrees, radians, or other units of measurement.

Since the sum of the measures of angles in a triangle is 180°,

m∠1 + m∠2 + m∠3 = 180°

putting the given values:

(7x - 21)° + (-5x + 75)° + m∠3 = 180°

Simplifying the above equation,

2x + 54° + m∠3 = 180°

Subtracting 54° from both sides, we get:

2x + m∠3 = 126°

We know that ∠3 is a right angle, which means its measure is 90°. Substituting this value, we get:

2x + 90° = 126°

Subtracting 90° from both sides, we get:

2x = 36°

Dividing both sides by 2, we get:

x = 18°

Now that we know the value of x, we can substitute it into the expression for m∠1:

m∠1 = (7x - 21)° = (7 x 18 - 21)° = 117°

Therefore, the measure of ∠1 is 117°.

To know more about angle, visit:

https://brainly.com/question/1309590

#SPJ1

The measure of angle 1, we need to use the given equation that relates angle 1 to variable x. The equation is

[tex] m ∠ 1 = ( 7 x − 21 ) °[/tex].

the measure of angle 1 is 35 degrees.

This means that the measure of angle 1 is equal to 7 times the value of x minus 21 degrees.
However, we are not given the value of x directly. Instead, we are given the measure of angle 2 in terms of x. The equation for angle 2 is

[tex] m ∠ 2 = ( − 5 x + 75 ) °[/tex].

This means that the measure of angle 2 is equal to negative 5 times the value of x plus 75 degrees.
We can set these two equations equal to each other because angle 1 and angle 2 are vertical angles and therefore congruent. This gives us the equation:
[tex]7x - 21 = -5x + 75[/tex]
We can simplify this equation by adding 5x to both sides:
[tex]12x - 21 = 75[/tex]
Then, we add 21 to both sides:
[tex]12x = 96[/tex]
Finally, we divide both sides by 12:
[tex]x = 8[/tex]
Now that we have found the value of x, we can plug it into the equation for angle 1 to find its measure:
[tex]m ∠ 1 = (7 * 8) - 21[/tex]
[tex]m ∠ 1 = 56 - 21[/tex]
[tex]m ∠ 1 = 35 degrees[/tex]

for such more questions on vertical angles

https://brainly.com/question/29071447

#SPJ11

two cards are drawn without replacement from a standard deck of 52 playing cards. what is the probability at least one of them is spades

Answers

To find the probability that at least one of the two cards drawn from a standard deck of 52 playing cards is a spade, we can use the complement rule.

The complement of the event "at least one of the cards is a spade" is "neither of the cards is a spade."

The probability that the first card is not a spade is 39/52 since there are 39 non-spade cards out of a total of 52 cards. Once the first non-spade card has been drawn, there will be 51 cards remaining, of which 38 are non-spades. Thus, the probability that the second card is also not a spade is 38/51.

To find the probability that neither of the two cards is a spade, we can multiply the probabilities of drawing a non-spade on the first card and a non-spade on the second card:

P(neither is spade) = (39/52) x (38/51) = 0.4498 (rounded to four decimal places)

The probability that at least one of the two cards is a spade is equal to 1 minus the probability that neither of the cards is a spade:

P(at least one is spade) = 1 - P(neither is spade)

P(at least one is spade) = 1 - 0.4498

P(at least one is spade) = 0.5502 (rounded to four decimal places)

Therefore, the probability that at least one of the two cards drawn from a standard deck of 52 playing cards is a spade is 0.5502 or approximately 55.02%.

To learn more about “probability” refer to the https://brainly.com/question/13604758

#SPJ11

Shiloh made a scale drawing of a triangular piece of art. Shiloh used a scale factor of 4 when making her drawing. If the base and the height of Shiloh's drawing are 7 inches and 2 inches respectively, what is the area of the piece of art?

Answers

The area of the piece of art is 448 square inches.

Shiloh made a scale drawing of a triangular piece of art.

Shiloh used a scale factor of 4 when making her drawing.

If the base and the height of Shiloh's drawing are 7 inches and 2 inches respectively,

what is the area of the piece of art?

Shiloh used a scale factor of 4 when making her drawing.

Therefore, the actual dimensions of the original triangular piece are four times the dimensions of the scaled drawing. Thus, the actual dimensions of the base and the height of the triangular piece are, respectively:

4 × 7 = 28 inches and 4 × 2 = 8 inches.

Using the formula for the area of a triangle,

we can find the area of the triangular piece.

The formula is given as A=12bh where b is the base and h is the height.

A = 12 × 28 × 8A = 112 × 4A = 448

Therefore, the area of the piece of art is 448 square inches.

For similar question on area.

https://brainly.com/question/25292087

#SPJ11

a baseball parkamount of soft drink dispensed is normally distributed with standard deviation 2.0 ounces. how many travel mugs should be included in a study if it is desiredthat the sample mean soft drink dispensed be within 0.5 ounces of the

Answers

If we randomly select 62 travel mugs and measure the amount of soft drink dispensed in each mug, the sample mean will be within 0.5 ounces of the population mean with 95% confidence.

To determine the number of travel mugs required for the study, we need to use the formula for sample size determination for means. The formula is:

n = (Z^2 * σ^2) / E^2

Where:

n = sample size

Z = Z-score for the desired confidence level (e.g., 1.96 for 95% confidence level)

σ = standard deviation of the population

E = desired margin of error (i.e., the maximum difference between the sample mean and the population mean)

In this case, we are given that the standard deviation of the soft drink dispensed is 2.0 ounces and we want the sample mean to be within 0.5 ounces of the population mean. Let's assume a 95% confidence level, which corresponds to a Z-score of 1.96. Plugging in the values, we get:

n = (1.96^2 * 2^2) / 0.5^2 = 61.6

We need to round up to the nearest whole number, so the final sample size should be 62 travel mugs. The larger the sample size, the smaller the margin of error will be, but it also means more time and resources required for the study.

To learn more about distribution click on,

https://brainly.com/question/13017311

#SPJ4

Complete question is:

a baseball parkamount of soft drink dispensed is normally distributed with standard deviation 2.0 ounces. how many travel mugs should be included in a study if it is desiredthat the sample mean soft drink dispensed be within 0.5 ounces of the population mean with 95% confidence.

On her way to a concert, Hermione stopped at a restaurant for dinner. In her purse, she had 12 bills worth a total of $40. She had only $1 bills and $5 bills. How many $5 bills did Hermione have in her purse?
1
2
5
7

Answers

Let x be the number of $1 bills and y be the number of $5 bills that Hermione had in her purse. Then we can write two equations based on the given information:

x + y = 12 (because Hermione had 12 bills in total)

x + 5y = 40 (because the total value of the bills was $40)

We can solve this system of equations by first solving the first equation for x:

x = 12 - y

Substituting this expression for x into the second equation, we get:

(12 - y) + 5y = 40

Simplifying and solving for y, we get:

4y = 28

y = 7

Therefore, Hermione had 7 $5 bills in her purse. Answer: 7.

a conical paper cup is 30 cm tall with a radius of 10 cm. the cup is being filled with water so that the water level rises at a rate of 2 cm/sec. at what rate is water being poured into the cup when the water level is 4 cm?

Answers

The rate at which water is being poured into the conical paper cup when the water level is 4 cm is 707.1067 cm3 / 353.5534 seconds = 2 cm/sec.

The rate at which water is being poured into the conical paper cup with a height of 30 cm and a radius of 10 cm when the water level is 4 cm is determined by the volume of water that must be added to the cup in order to raise the water level from 0 cm to 4 cm. The volume of a cone is

V = (1/3)πr2h.

Therefore, the volume of water added to the cone when the water level is 4 cm is

V = (1/3)π × 102 × (30 - 4) = 707.1067 cm3.

Since the water level is rising at a rate of 2 cm/sec, it will take 707.1067 cm3 / 2 cm/sec = 353.5534 seconds to add the necessary water to the cup to raise the water level to 4 cm.

for such more question on rate

https://brainly.com/question/119866

#SPJ11

CAN SOMEONE PLS HELP ME WITH THIS LIKE QUICKLY

Answers

Answer:

The solutions to the equation x² = 196 are:

x = 14 or x = -14

Therefore, the smallest answer is -14 and the largest answer is 14.

X = -14 or 14

mark me and brainliest

a cell phone company charges $500 for a new phone and then $60 each month after the purchase. if c (t) is a rational function that represents the average monthly cost of owning the cell phone, what is the range of the function?

Answers

The range of the function is a set of positive values greater than 500 and 60.

Therefore, the range of the function is given by:

Range = {c(t) : c(t) > 500, c(t) > 60t} or {c(t) : c(t) > 500, c(t) > 60}.

The given situation of a cell phone company charges $500 for a new phone and then $60 each month after the purchase.

If c (t) is a rational function that represents the average monthly cost of owning the cell phone, the range of the function is given by:

Range = {c(t) : c(t) > 500, c(t) > 60t} or {c(t) : c(t) > 500, c(t) > 60}

The cell phone company charges a one-time amount of $500 and $60 each month after the purchase.

It is given that c (t) represents the average monthly cost of owning the cell phone.

From this information, it can be inferred that the average monthly cost of owning the cell phone is given by: c(t) = (500 + 60t)/t

The given function is a rational function that represents the average monthly cost of owning the cell phone.

The range of a function is the set of all possible values of the function.

The average monthly cost of owning the cell phone is a positive value.

Hence the range of the function is a set of positive values greater than 500 and 60.

For similar question on function.

https://brainly.com/question/25638609

#SPJ11

Is r=4q-5 a linear function ?

Answers

Answer:

yes

Step-by-step explanation:

replace r and q with y and x:

y = 4x - 5

It is a line.

Yes r=4q-5 is a linear function

Given that New Mexico has a population of about 12 people per square miles and
an area of about 120,000 square miles, what is the population of New Mexico
Mark only one oval.
10,000
1,000,000
1,440,000
2,400,000

Answers

Answer:

1440000

Step-by-step explanation:

Since for every mile, there are 12 people, we have 120000 miles. If we multiply 12 by 120000, we get 1440000.

Answer:

Population = 1,440,000

Step by step explanation:

The population of New Mexico can be calculated by multiplying the population density (12 people/square mile) by the area of the state (120,000 square miles):

Population = Population density x Area
Population = 12 people/square mile x 120,000 square miles
Population = 1,440,000

Therefore, the population of New Mexico is 1,440,000. The correct oval to mark is "1,440,000".

in exercise physiology, a person's maximum heart rate, in beats per minute, is found by subtracting his age in years from 220. so, if a represents your age in years, then your maximum heart rate is:

Answers

Step-by-step explanation:

If your age is ' a ' then your max heart rate = 220 - a

Suppose you apply the Euclidean algorithm to two positive integers a, b.You only know that a is a number with 1000 decimal digits. The value of b on the other hand isgiven:b=3.Then we can be certain that the Euclidean algorithm will end with a zero remainder in how manysteps?Enter the lowest number we can be certain of

Answers

This means that the algorithm will end after just one step, and the GCD will be equal to the last non-zero remainder, which in this case is 3. Therefore, we can be certain that the Euclidean algorithm will end with a zero remainder in one step, and the lowest number we can be certain of is 3.

In this particular question, the student is asking how many steps are required for the Euclidean algorithm to end with a zero remainder when applying it to two positive integers a and b.Suppose you apply the Euclidean algorithm to two positive integers a, b. You only know that a is a number with 1000 decimal digits. The value of b, on the other hand, is given as 3. We can be certain that the Euclidean algorithm will end with a zero remainder in one step.

In order to understand why this is the case, it is important to know that the Euclidean algorithm is a method for computing the greatest common divisor (GCD) of two positive integers. It is based on the observation that the GCD of two numbers does not change if the smaller number is subtracted from the larger number repeatedly.The Euclidean algorithm begins by dividing the larger number by the smaller number and taking the remainder.

The larger number is then replaced with the smaller number, and the smaller number is replaced with the remainder. This process is repeated until the remainder is zero. At this point, the algorithm ends, and the GCD is equal to the last non-zero remainder that was computed.In the case of the student's question, we know that b=3. Since 3 is relatively prime to any number, including a number with 1000 decimal digits, the remainder of the first step will always be 0.

for such more questions on Euclidean algorithm

https://brainly.com/question/24836675

#SPJ11

Other Questions
a student does not transfer all of the unknown acid into the flask before titrating with an naoh solution that was correctly standardized. how does this mistake affect his recorded results? Write a program that creates a 4 x 5 list called numbers. The elements in your list should all be random numbers between -100 and 100, inclusive. Then, print the list as a grid.For instance, the 2 x 2 list [[1,2],[3,4]] as a grid could be printed as:1 23 4Sample Output-94 71 -18 -91 -78 -40 -89 42 -4 -99 -28 -79 52 -48 34 -30 -71 -23 88 59 Note: the numbers generated in your program will not match the sample output, as they will be randomly generated. Let us go, through certain half-deserted streets, The muttering retreats Of restless nights in one-night cheap hotels And sawdust restaurants with oyster-shells: Streets that follow like a tedious argument Of insidious intentWhat does the use of the word muttering suggest?the inability to be understooda feeling of discontenta sense of lonelinessthe noise of city streets What evidence is there to explain the energy of two blocks? A fair coin is tossed 7 times. Compute the probability of tossing 7 heads in a row.Enter your response as a reduced fraction. 2 logx 2 + logx 6 = 2 I really need this answer on properties of logarithms: practice an investigative report on your local news channel exposes the systematic failure of local health inspectors to monitor and punish a popular restaurant for repeated violations of food safety regulations. this report is an example of Mr. Johnson placed three desks together in his classroom. Each desk measures at 1.5 meters.How many centimeters are all three desks? Someone please help created a strategy for addressing complaints formulated a statement explaining the fair relationship between the colonies and Britain established the Committees of Observation to enforce boycott of British goodsThe actions above were all performed by A. the Sons of Liberty. B. the Committees of Correspondence. C. the Second Continental Congress. D. the First Continental Congress. the altitude of a triangle is increasing at a rate of centimeters/minute while the area of the triangle is increasing at a rate of square centimeters/minute. at what rate is the base of the triangle changing when the altitude is centimeters and the area is square centimeters? A friend has written to tell you she has decided to learn a trade after her senior high course. Write a reply to her giving at least reason why you support or disagree with her decision What are light-dependent reactions fueled by? atp created from glycolysis the sun the reflection of light from surrounding plants Bromophenol blue is another common acid-base indicator which changes color from yellow in acidic solution to blue in basic solution. The pH values for this indicator are in a range of approximately 3.0 to 4.6. Instead of using phenolphthalein in the CH3COOH-NaOH titration, if bromophenol blue was used, would the calculated molarity of acetic acid be higher, lower, or the same? Explain. stock y has a beta of 1.45 and an expected return of 13.0 percent. stock z has a beta of .90 and an expected return of 12.0 percent. if the risk-free rate is 4.90 percent and the market risk premium is 7.40 percent, are these stocks overvalued or undervalued? 2. The base of a right triangular prism has an area of 98 square units. If the total surface area ofthe prism is 466 square units, which of the following are possible areas for the faces of theprism?O30, 110, and 190 square unitsO 40, 80, and 120 square unitsO 50, 100, and 150 square unitsO 60, 90, and 120 square units(1 aqueous carbonic acid is obtained by the reaction of carbon dioxide gas and liquid water . write a balanced chemical equation for this reaction. how did the introduction of dairy change early humans to evolved? which birth factor places the neonate at risk for sudden infant death syndrome (sids)? select all that apply. one, some, or all responses may be correct. birth order postmaturity multiple births method of delivery low apgar scores a(n) , used in the choice phase, helps sort through possible solutions to choose the best one for an organization. a firm is currently producing a price inelastic good. what course of action do you recommend for it, assuming it wants to raise revenue?