A normal population has a mean of $76 and standard deviation of $6. You select random samples of 40.

1. What is the probability that a sample mean is less than $75? (Round z-value to 2 decimal places and final answer to 4 decimal places.)

2. What is the probability that a sample mean is between $75 and $77? (Round z-value to 2 decimal places and final answer to 4 decimal places.)

3. What is the probability that a sample mean is between $77 and $78? (Round z-value to 2 decimal places and final answer to 4 decimal places.)

4. What is the probability that the sampling error ( x¯

− μ) would be $1.50 or less? (Round z-value to 2 decimal places and final answer to 4 decimal places.)

Answers

Answer 1

Using a z-table, the probability of a z-score less than 1.58 is 0.9429 (rounded to 4 decimal places).

What is probability?

Probability is a measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. The probability of an event can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. It is used in various fields such as mathematics, statistics, science, and finance to make predictions and analyze data.

Here,

1. The z-score for a sample mean of $75 is calculated as:

z = (75 - 76) / (6 / √(40)) = -2.36

Using a z-table, the probability of a z-score less than -2.36 is 0.0099 (rounded to 4 decimal places).

2. The z-score for a sample mean of $75 is calculated as:

z1 = (75 - 76) / (6 / √(40))

= -2.36

The z-score for a sample mean of $77 is calculated as:

z2 = (77 - 76) / (6 / √(40))

= 0.79

Using a z-table, the probability of a z-score between -2.36 and 0.79 is 0.8669 (rounded to 4 decimal places).

3. The z-score for a sample mean of $77 is calculated as:

z1 = (77 - 76) / (6 / √(40))

= 0.79

The z-score for a sample mean of $78 is calculated as:

z2 = (78 - 76) / (6 / √(40))

= 1.57

Using a z-table, the probability of a z-score between 0.79 and 1.57 is 0.0823 (rounded to 4 decimal places).

4. The standard error of the mean (SEM) is calculated as:

SEM = standard deviation / sqrt(sample size)

SEM = 6 / √(40) = 0.9487

The z-score for a sampling error of $1.50 is calculated as:

z = 1.50 / 0.9487 = 1.58

Using a z-table, the probability of a z-score less than 1.58 is 0.9429 (rounded to 4 decimal places).

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Related Questions

a punch bowl has a capacity of 8 quarts. a recipe fills the bowl 3/4 full.how many quarts does the recipe make

Answers

Therefore , the solution of the given problem of unitary method comes out to be yields 6 quarts of punch as a result.

An unitary method is what?

This common convenience, already-existing variables, or all important elements from the original Diocesan customizable survey that followed a particular event methodology can all be used to achieve the goal. If it does, there will be another chance to get in touch with the entity. If it doesn't, each of the crucial elements of a term proof outcome will surely be lost.

Here,

The quantity of punch produced by the recipe is:

If the punch bowl has an 8-quart capacity and the recipe fills it 3/4 full.

=> 6 pints =  8 * 3/4.

The formula yields 6 quarts of punch as a result.

Therefore , the solution of the given problem of unitary method comes out to be yields 6 quarts of punch as a result.

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Determine the area, in square feet, of a circle with a diameter of 8 feet. Round to the nearest tenth

Answers

Answer:

50.27 ft

Step-by-step explanation:

A bag has 2 blue cubes, 3 red cubes, and 5 green cubes. If you draw a cube and replace it in the bag 100 times, which of the following amounts would you expect to pull? Select all that apply. A) Pull more than 2 times as many green cubes as blue cubes B) Pull a green cube 50 times C) Pull a blue cube 20 times D) Pull more red cubes than green cubes E) Pull a blue cube 70 times

Answers

Pull a green cube 50 times; Pull a blue cube 70 times. The possible options are B and E.

Describe Probability?

Probability refers to the likelihood or chance of an event occurring, expressed as a number between 0 and 1.

A probability of 0 indicates that an event is impossible, while a probability of 1 indicates that an event is certain to occur. For example, the probability of rolling a 7 on a fair six-sided die is 0, while the probability of rolling a 1, 2, 3, 4, 5, or 6 is 1/6.

Probabilities can also be expressed as percentages, with a probability of 0.5 (or 50%) indicating an even chance of an event occurring.

A) Pull more than 2 times as many green cubes as blue cubes:

Since there are only 2 blue cubes in the bag and 5 green cubes, it is highly unlikely that you would pull more than 2 times as many green cubes as blue cubes in 100 draws. Therefore, this option is unlikely.

B) Pull a green cube 50 times:

There are 5 green cubes in the bag, so it is possible to pull a green cube 50 times in 100 draws. Therefore, this option is possible.

C) Pull a blue cube 20 times:

There are only 2 blue cubes in the bag, so it is unlikely that you would pull a blue cube 20 times in 100 draws. Therefore, this option is unlikely.

D) Pull more red cubes than green cubes:

There are 3 red cubes and 5 green cubes in the bag, so it is possible to pull more red cubes than green cubes in 100 draws. Therefore, this option is possible.

E) Pull a blue cube 70 times:

Since there are only 2 blue cubes in the bag and you are drawing with replacement, it is highly unlikely that you would pull a blue cube 70 times in 100 draws. Therefore, this option is unlikely.

Therefore, options B and D are possible.

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Mr. Kwesi Oppong was appointed Financial Controller of Dukes Limited on an annual salary scale of GH¢85,000 X GH¢5,000 – GH¢130,000 on 1/7/2019. In addition, he was entitled to the following allowances:Acting Allowance GH¢5,000 per annumMedical Allowance GH¢300.00 a monthTransport Allowance GH¢250.00 a monthThe company provided him with a furnished accommodation at Hydrafon Estates and a vehicle with an official driver and free fuel.He has a Life Insurance Policy with the following details:Company Capital Sum Premium paid GH¢ GH¢Star Assurance 70,000.00 8,000.00 He is married with three children. The eldest son is in the University of South Africa (UNISA). His other son is in Adonten Senior High School in Aburi and the daughter is in Akosombo International School. He maintains all the children in addition to a 61 year old mother. He contributes 5.5% of his salary to Social Security.RequiredCalculate his chargeable income for the year of assessment 2022.

Answers

Mr. Oppong's chargeable income for the year of assessment 2022 is GH¢109,100.

What sort of revenue is charged, for instance?

Taxes must generally be paid on all types of income, even those derived from a business or profession. Employment. Dividends.

We must take into account Mr. Kwesi Oppong's salary, benefits, and any deductions when determining his chargeable income for the assessment year of 2022.

Let's start by figuring out his gross revenue for 2022. The annual wage scale for Mr. Oppong is GH85,000 X GH5,000 - GH130,000, which denotes a salary range of GH85,000 to GH130,000. To make things easier, we might suppose that his pay is the midpoint of the range, or GH107,500.

His annual acting allowance is GHC 5,000, so the following would be his total income from salary and allowances:

GH107,500 plus GH5,000 plus (GH300 x 12) plus (GH250 x 12) equals GH114,500.

Next, we must look at his advantages. Mr. Oppong is given a vehicle with a designated driver and free fuel, as well as a furnished place to stay. They are taxable benefits, but in order to estimate their worth, we need more details.

Mr. Oppong also holds a life insurance policy with a GHC 70,000 capital and GHC 8,000 yearly premium. This is not a necessary component of his chargeable income.

Let's now explore the inferences made by Mr. Oppong. 5.5% of his income is put into Social Security by him. Since the Social Security rate is set at GH450 every month, Mr. Oppong can only contribute a maximum of GH5,400 (GH450 x 12) in a given year.

As a result, the following would be Mr. Oppong's chargeable income for the year of assessment 2022:

GH114,500 minus GH5,400 equals GH109,100.

Thus, GH 109,100 will be Mr. Oppong's chargeable income for the assessment year 2022.

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Find the volume of a cylinder with a diameter of 28 meters and a height of 4 and one half meters. Approximate using pi equals 22 over 7.

11,088 cubic meters
2,772 cubic meters
567 cubic meters
284 cubic meters

Answers

As a result, the cylinder's capacity is roughly 11,088 cubic metres.

In arithmetic, what is the radius?

The diameter of a circular is the distance measured through its middle. The radius of a circle is the distance to the middle to any spot on the edge. Diameter divided by radius equals two, or 2r=d. 2 r = d .

First, we need to find the radius of the cylinder. We know that the diameter is 28 meters, so the radius is half of that, which is 14 meters.

Using the formula for the volume of a cylinder, V = πr²h, we can now substitute the given values:

V = (22/7) x 14² x 4.5

Simplifying this expression:

V = (22/7) x 196 x 4.5

V = 11,088 cubic meters

Therefore, the volume of the cylinder is approximately 11,088 cubic meters.

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In February gas prices jumped from 329 to 3:49 this represents a 6.1 increase however the reverse occurs dropping from 349 to 3:29 then it is a 5.7% in decrease why are the percent decrease and percent increase values different

Answers

Answer:

The percent increase and percent decrease values are different because they are calculated based on different starting values. When the price increases from 329 to 349, the percent increase is calculated as (349-329)/329 * 100% = 6.1%. However, when the price decreases from 349 to 329, the percent decrease is calculated as (349-329)/349 * 100% = 5.7%. The difference in starting values results in different percentage changes.

Step-by-step explanation:

Without looking, Luke picks necklace beads from a bag of 52 beads. Half the beads are rough. The other half are smooth. There are 13 red beads, 13 blue beads, 13 green beads, and 13 black beads. Use this information for Problems 1-5. Write each probability as a fraction in simplest form.
What is the theoretical probability of not selecting a red bead?

Answers

In theory, there is a 3/4 chance that you won't choose a red bead.

What is the probability formula?

Typically, the probability is defined as the ratio of favourable events to all other outcomes in the sample space. The formula for probability of an occurrence is P(E) = (Number of favourable outcomes) (Sample space).

Out of a total of 52 beads, 13 are red, hence the likelihood of choosing a red bead is:

P(red) = 13/52 = 1/4

The complement of choosing a red bead is the likelihood of not choosing one, which is:

P(not red) equals P - 1. (red)

When we replace the value of P(red), we obtain:

P(not red) = 1-quarter

If we simplify, we get:

3/4 for P(not red).

So, there is a 3/4 chance that you won't choose a red bead in theory.

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Use the standard normal table to find the z-score that corresponds to the cumulative area 0.3897. If the area is not in the table, use the entry closest to the are
between two entries, use the z-score halfway between the corresponding z-scores.
Click to view page 1 of the standard normal table) Click to view page 2 of the standard normal table.
Z= (Type an integer or decimal rounded to two decimal places as needed.)

Answers

The z-score that corresponds to a cumulative area of 0.3897 is 0.25.

What is the z-score:

A Z-score is a statistical measurement that indicates how many standard deviations a data point is from the mean of a distribution.

It is calculated by subtracting the mean of the distribution from the data point and then dividing the result by the standard deviation of the distribution.

Here we have

The cumulative area is 0.3897

Using the standard normal table, we can find the z-score that corresponds to a cumulative area of 0.3897 as follows:

1. Locate the entry in the body of the table that is closest to 0.3897. In this case, the closest entry is 0.3897 in the body of the table.

2. Identify the corresponding row and column headers for this entry. The row header is 0.0 and the column header is 0.08.

3. The z-score that corresponds to the area of 0.3897 is the value at the intersection of the row and column headers. In this case, the value is 0.25.

Therefore,

The z-score that corresponds to a cumulative area of 0.3897 is 0.25.

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Find the savings plan balance after

4

years with an APR of

8​%

and monthly payments of

​$150.

Question content area bottom

Part 1

The balance is

​$enter your response here.

​(Do not round until the final answer. Then round to the nearest cent as​ needed.)

Answers

The balance of the savings plan after 4 years with an APR of 8% and monthly payments of $150 is approximately $7,456.76.

What exactly is a savings plan formula?

As a result, the savings plan formula for such challenges is as follows: final saving = number of periods * (first and last period savings) / 2.

To calculate the balance of the savings plan after four years, we can use the formula for the future value of an annuity with regular payments:

P * ((1 + r/n)(n*t) - 1) / (r/n)

Where P is the monthly payment amount, which is $150.

r = 8% annual interest rate

n = the number of times annual interest is compounded = 12 (since we have monthly payments)

4 t = the number of years

We get the following results when we plug these values into the formula:

FV = 150 * ((1 + 0.08/12)^(12*4) - 1) / (0.08/12) ≈ $7,456.76

As a result, the savings plan balance after four years with an APR of 8% and monthly payments of $150 is approximately $7,456.76.

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What is the volume of the cylinder? Show your work.

Answers

Answer:

I'm stuck too like is so aggravating

What is the least common multiple of 3 and 16?

Answers

The lcm is 48. Because 48 is the smallest, it is the least common multiple, the LCM of 3 and 16 is 48.

Lmkkkk helppppppppppp

Answers

Answer:

1.986 x 10 to the tenth power

Step-by-step explanation:

Curious about people's recycling behaviors, Sandra put on some gloves and sifted through some recycling and trash bins. She kept count of the plastic type of each bottle and which bottles are properly dispensed.
What is the probability that a randomly selected bottle is correctly placed AND is a Plastic #4 bottle?

A. 13/20

B. 7/20
C. 1/4
D. 5/8
show all steps

Answers

We can use the formula for conditional probability to find the probability that a randomly selected bottle is correctly placed AND is a Plastic #4 bottle:

P(correctly placed AND Plastic #4) = P(Plastic #4 | correctly placed) * P(correctly placed)

We are given that Sandra kept track of which bottles are correctly placed and the plastic type of each bottle. Let's assume that she examined a total of 100 bottles and found that 20 of them are correctly placed and made of Plastic #4. Therefore:

P(Plastic #4 | correctly placed) = 20/20 = 1
P(correctly placed) = 20/100 = 1/5
Substituting these values into the formula, we get:

P(correctly placed AND Plastic #4) = 1 * 1/5 = 1/5

Therefore, the probability that a randomly selected bottle is correctly placed AND is a Plastic #4 bottle is 1/5, which is equivalent to 0.2 or 20%. The answer is not one of the given options.

Answer:

Sandra's curiosity led her to sift through recycling and trash bins, wearing gloves to keep her hands clean. She counted the plastic type of each bottle and noted which ones were properly disposed of. It's important to be mindful of our recycling behaviors and make sure we're doing our part to protect the environment. Let's all strive to recycle properly and reduce our waste!

14 points! PLEASE HELP!!!

Answers

Step-by-step explanation:

I just did in the other posting. how often did you post it ?

this is a trick question. the triangle at the top is not an isoceles triangle.

we use Pythagoras for an the steps.

so, the left part of the baseline (split by the height) is calculated by

12² = 10² + part²

144 = 100 + part²

part = sqrt(44) = 6.633249581... ft

the other part is then

20 - 6.633249581... = 13.36675042... ft

and the second leg of the large triangle is

leg² = 10² + 13.36675042...² = 278.6700168...

leg = 16.69341238... ft

P = 12 + 16.69341238... + 8 + 8 + 20 = 64.69341238... ft ≈

≈ 64.69 ft

please see the answer to the other posting for more details.

3(2x+5)=3 what does x mean

Answers

Answer:

x=-2

Step-by-step explanation:

3(2x+5)=3

Distribute

6x + 15 = 3

Subtract 15 from both sides (3-15=-12)

6x = -12

Divide by 6

x = -2

Answer: x = -2

5. Elsa earns $150 more than Anna per week. Each girl spent $320 a week and saved the rest of their earning. When Anna had saved $2880, Elsa had saved $2400 more than Anna. How much did Elsa earn per week?​

Answers

The amount Elsa earns per week, which is $150 more than Anna per week and Elsa had saved $2400 more than Anna when Anna had saved $2880, found by solving the simultaneous equations obtained is $650.

What are simultaneous equations?

Simultaneous equations are equations that share the same variables.

Let x represent the amount Elsa earn per week, we get;

The amount Anna earns per week + 150 = The amount Elsa earns per week

Therefore; The amount Anna earns per week = x - 150

The amount each girl spent per week = $320

The amount saved per week = The rest of their weekly earning

The mount more Elsa add saved when Anna saved $2880 = $2400

Let n represent the number of weeks after which Anna had saved $2,880, we get the following equations;

n × (x - 150 - 320) = 2800

n × (x - 470) = 2800...(1)

n × (x - 320) = 2880 + 2400 = 5280

n × (x - 320) = 5280...(2)

The above simultaneous equations (1) and (2) indicates;

n × (x - 470) = 2800

x - 470 = 2880/n

x = 2880/n + 470

n × (x - 320) = 5280

x - 320 = 5280/n

x = 5280/n + 320

2800/n + 470 = 5280/n + 320

5280/n - 2880/n = 470 - 320 = 150

(5280 - 2880)/n = 150

n = (5280 - 2880)/150 = 16

n = 16

x = 5280/n + 320

Therefore;

x = 5280/16 + 320 = 650

The amount Elsa earned per week, x = $650

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In the image below, arc AB has a measure of 32 degrees.

What is the measure of the inscribed angle that intercepts it? (Angle ACB)

Answers

Therefore , the solution of the given problem of angles comes out to be  the engraved angle ACB is 16 degrees in size.

An angle meaning is what?

Using Cartesian coordinates, the top and bottom walls divide the circular lines that make up a skew's ends. There is a chance that two poles will meet at a junction point. Angle is another outcome of two things interacting. They mirror dihedral forms the most. A two-dimensional curve can be created by arranging two line beams in various ways at their extremities.

Here,

A circle's inscribed angle has a measure that is half that of the interrupted arc. As a result, the inscribed angle ACB intersecting arc AB with a measure of 32 degrees will have a measure of:

=> Angle ACB = 32 / (1/2)

=> ACB = 16 degree angle

As a result, the engraved angle ACB is 16 degrees in size.

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An oil-producing country can sell 7 million barrels of oil a day at a price of $80 per barrel. If each $1 price increase will result in a sales decrease of 100,000 barrels per day, what price will maximize the country's revenue?
$

How many barrels will it sell at that price?
barrels

Answers

Answer:

Step-by-step explanation:

To find the price that maximizes the country's revenue, we need to consider the relationship between price, sales, and revenue.

Let's start by calculating the current revenue for the country:

Revenue = Price × Sales

Revenue = $80/barrel × 7 million barrels/day

Revenue = $560 million/day

Now let's consider the effect of a price increase on sales. According to the problem, a $1 increase in price will result in a decrease of 100,000 barrels/day in sales. This means that the new sales rate at a price of $81/barrel will be:

New sales = 7 million barrels/day - 100,000 barrels/day per $1 increase × (81 - 80)

New sales = 6.9 million barrels/day

The new revenue at a price of $81/barrel will be:

New revenue = $81/barrel × 6.9 million barrels/day

New revenue = $559.9 million/day

We can repeat this process for a range of prices to see how revenue changes:

Price Sales (million barrels/day) Revenue (million $/day)

 80                            7.0                             560.0

 81                            6.9                             559.9

 82                            6.8                             544.0

 83                            6.7                             534.1

 84                            6.6                             528.0

 85                            6.5                             520.0

From this table, we can see that the price that maximizes revenue is $84/barrel. At this price, the country will sell 6.6 million barrels/day, and generate revenue of $528 million/day.

Therefore, the price that will maximize the country's revenue is $84/barrel, and it will sell 6.6 million barrels/day at that price.

Please help answer this!!!
Given m∥n, find the value of x.
(2x+5) (8x+5)

Answers

the answer is x=17.

Use the drawing tool(s) to form the correct answers on the provided grid.
Draw all of the lines of reflection for the given figure.
Drawing Tools
Select
Line
Click on a tool to begin drawing
Reset
Next
Delete
Undo
Reset

Answers

As a text-based AI, I am unable to use drawing tools or interact with grids. However, I can still help you understand the terms you mentioned and provide guidance on how to approach the problem.

1. "Delete": This term typically refers to removing an element or a part of the content you're working on. When working with a grid, you may need to delete some lines, shapes, or text that are not needed.

2. "Reset": Resetting refers to reverting a grid or a drawing tool to its original state, essentially starting from scratch. This can be useful if you've made multiple changes and want to begin anew without having to manually undo each step.
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In ΔUVW,



UW
is extended through point W to point X,
m




=
(

+
19
)

m∠UVW=(x+19)

,
m




=
(

+
13
)

m∠WUV=(x+13)

, and
m




=
(
5

+
14
)

m∠VWX=(5x+14)

. Find
m




.
m∠WUV.

Answers

Answer:

m∠WUV=135°

Hope this helps.

Im stuck on these questions I need help

Answers

Answer:

Step-by-step explanation:

modal weight:  the weight that appear most often

4.5 kg  appears 3 times

6-sided polygon:  even though it is an irregular polygon, the interior angles still add up to (6 - 2)180 = 720

therefore, angle f = 720 - 576 = 144      (the sum of a+b+c+d+e is very blurry in the image, it looks like 576--please double check that!)

modal score:  read this right off the graph.  The score with the highest frequency is the modal score:  14   (meaning, 9 contestants got this score)

WILL GIVE BRAINLYEST AND 60 POINTS EACH HELP ASAP

Answers

Answer:

The cone takes up one-third of the volume of the cylinder. (the cylinder is 3x bigger than the cone)

Step-by-step explanation:

Answer:

B. is right.

Step-by-step explanation:

Volume of cone = volume of cylinder/3

Therefore the volume of the cylinder is 3 x that of cone

PLEASE HELP! Find missing side lengths of b and c. Explain

Answers

The measures of the two missing sides are:

c = 5√6 b =  10√2

How to find the lengths of b and c?

Here we can see a right triangle where we know the measures of the interior angles and one of the sides. And we want to find the lengths of the other two sides.

We can use trigonometric relations like.

sin(a) = (opposite cathetus)/hypotenuse.

Here we know that b is the hypotenuse, and the known side is the opposite cathetus of the 30° angle, then we can write:

sin(30°) = 5√2/b

Solving this for b, we will get:

b =  5√2*(1/sin(30°))

b =  5√2*(2) = 10√2

And the value of c is given by:

sin(60°) = c/10√2

10√2*sin(60°) = c

10√2*(√3/2) = c

5*√(2*3) = c

5√6 = c

These are the two missing lengths.

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PLEASE HELP!!!

The figure below shows a triangular wooden frame ABC. The side AD of the frame has rotted and needs to be replaced:
What is the length of the wood that is needed to replace AD?

8.1 inches
6.2 inches
5.9 inches
7.4 inches

Answers

We need a piece of wood that is approximately 8.1 inches long to replace AD. So, the answer is option A.

Describe Triangle?

In geometry, a triangle is a three-sided polygon consisting of three line segments that connect three non-collinear points. These three points are called the vertices of the triangle, and the line segments connecting them are called sides. The sum of the angles of a triangle is always 180 degrees.

Triangles can be classified based on their sides and angles. A triangle with all three sides of equal length is called an equilateral triangle, while a triangle with two sides of equal length is called an isosceles triangle. A triangle with no sides of equal length is called a scalene triangle.

Triangles can also be classified based on their angles. A triangle with all three angles less than 90 degrees is called an acute triangle, while a triangle with one angle greater than 90 degrees is called an obtuse triangle. Finally, a triangle with one angle equal to 90 degrees is called a right triangle.

First, we can use trigonometry to find the length of side AC. Since angle BCD is 30 degrees and BC = 14, we have:

sin(30) = AC/14

AC = 14*sin(30)

AC = 7 inches

Next, we can use the fact that triangle ACD is a 15-75-90 triangle to find the length of AD. Since angle CAD is 75 degrees, we have:

tan(75) = AD/AC

AD = ACtan(75)

AD = 7tan(75)

Using a calculator, we get:

AD ≈ 8.09 inches

Therefore, we need a piece of wood that is approximately 8.1 inches long to replace AD. So, the answer is option A.

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Answer:

5.9

Step-by-step explanation:

segment BD was 8.1 so segment AD cant be 8.1

Plot a point that best represents the value of square root 215 on the number line

Answers

Answer:

Put the point a tiny bit more than half way between 14 and 15.

Step-by-step explanation:

If you are allowed to use a calculator, put in sqrt215 and you get out 14.66, that goes a little bit more than halfway between 14 and 15.

If you are not allowed to use a calculator, think of the numbers on the numberline in terms of answers to *perfect square* questions.

So 12 is sqrt 144.

13 is sqrt 169.

14 is sqrt 196.

15 is sqrt 225.

So the 215 in your question is in between 196 and 225.

215 is closer to 225 (than to 196) so put the point closer to sqrt 225. That is, in between 14 and 15 and just a tad bit closer to 15.

What is tan(49°)?
O A. 0.75
OB. 0.66
O C. 1.15
OD. 0.82

Answers

Answer:

Find the Exact Value tan(49). tan(49) tan ( 49 ). Step 1. The result can be shown in multiple forms. Exact Form: tan(49) tan ( 49 ). Decimal Form:

Step-by-step explanation:

The area of a certain desert (Desert 1) is seven times the area of another desert (Desert 2). If the sum of their areas is
32,000,000 square miles, find the area of each desert.
...

Answers

The area of Desert 1 is 28,000,000 square miles and the area of Desert 2 is 4,000,000 square miles.

How to find the area of each desert?

Let's assume that the area of Desert 2 is x square miles.

According to the problem statement, the area of Desert 1 is seven times that, or 7x square miles.

We are also given that the sum of their areas is 32,000,000 square miles:

x + 7x = 32,000,000

Simplifying the left side of the equation:

8x = 32,000,000

Dividing both sides by 8:

x = 4,000,000

Now that we know the area of Desert 2 is x = 4,000,000 square miles, we can find the area of Desert 1 by multiplying by 7:

7x = 7(4,000,000) = 28,000,000

Therefore, the area of Desert 1 is 28,000,000 square miles and the area of Desert 2 is 4,000,000 square miles.

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PLEAS HELP!

Which best describes why it is helpful to know the slant height of a pyramid to find its surface area?


Responses


1)Knowing the slant height helps because it represents the height of the triangle that makes up the base. So, the slant height helps you to find the area of the base.

2)Knowing the slant height helps because it represents the height of the rectangle that makes up each lateral face. So, the slant height helps you to find the area of each lateral face.

3)Knowing the slant height helps because it represents the height of the triangle that makes up two of the lateral faces. So, the slant height helps you to find the area of those two lateral faces.

4)Knowing the slant height helps because it represents the height of the triangle that makes up each lateral face. So, the slant height helps you to find the area of each lateral face.

Answers

Therefore, knowing the slant height is important in calculating the lateral area of the pyramid, which is one component of the total surface area.

by the question.

Option 2 is the correct response. Knowing the slant height is helpful because it represents the height of the rectangle that makes up each lateral face of the pyramid. The lateral faces are made up of triangles and rectangles, and the slant height is used to find the height of these rectangles.

Knowing the slant height helps because it represents the height of the rectangle that makes up each lateral face. So, the slant height helps you to find the area of each lateral face. The formula for the lateral area of a pyramid involves the slant height, the perimeter of the base, and the apothem (the distance from the center of the base to the midpoint of a side). Once you know the lateral area, you can add it to the area of the base to find the total surface area of the pyramid.

The slant height of a pyramid is the height of each triangular lateral face, which is an essential component in calculating the lateral surface area of a pyramid. Knowing the slant height is used in the formula for finding the lateral area of a pyramid, which is the sum of the areas of all the triangular lateral faces. Additionally, the base area of the pyramid is also needed to find the total surface area of the pyramid. So, knowing the slant h

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A random sample of laptop computers at an electronics store shows that 1 of the 25 sampled laptop computers has a malfunction. There are 300 laptop computers at the electronics store. Estimate the number of laptop computers at the electronics store that have malfunctions.

Answers

Answer:12

Step-by-step explanation:

i did it :)

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