many people now turn to the internet to get information on health-related topics. a research article used flesch reading ease scores (a measure of reading difficulty based on factors such as sentence length and number of syllables in the words used) to score pages on wikipedia and on webmd. higher flesch scores correspond to more difficult reading levels. the paper reported that for a representative sample of health-related pages on wikipedia, the mean flesch score was 26.2 and the standard deviation of the flesch scores was 14.2. for a representative sample of pages from webmd, the mean score was 43.6 and the standard deviation was 19.9. suppose that these means and standard deviations were based on samples of 40 pages from each site. is there convincing evidence that the mean reading level for health-related pages differs for wikipedia and webmd? test the relevant hypotheses using a significance level of 0.05.

The total number of hours Erica works in a week when she babysits for 8 hours can be expressed using the following equation: Total Hours Worked = 8 x Number of Babysitting Days per Week In this case, since Erica babysits for 8 hours.

To calculate the total number of hours Erica works in a week, we need to consider the number of days she babysits and the number of hours she works per day. Erica babysits for 8 hours per day. Therefore, we can use the equation

Total Hours Worked = Number of Days x Hours per Day

To calculate the total number of hours she works in a week. We can substitute these values into the equation:

Total Hours Worked = 1 x 8 = 8 hours.

This means that Erica works a total of 8 hours per week when she babysits for 8 hours.

To learn more about equation follow the link:

https://brainly.com/question/29657983

#SPJ1

Answer:  5

Step-by-step explanation:

The area of the rectangle is [tex]$\sqrt{20} \times \sqrt{5} = \sqrt{100} = 10$[/tex] square units. Thus, the answer is option D: 10 square units.

What is area of rectangle?

The area of a rectangle is the measure of the region enclosed by its sides, and is calculated by multiplying the length and the width of the rectangle. The unit of area is typically expressed in square units, such as square meters (m²) or square feet (ft²).

The area of rectangle can be calculated using the distance formula to find the length and width of the rectangle, and then multiplying them. Let A(2,1), B(1,3), C(5,5), and D(6,3) be the coordinates of the rectangle's vertices.

The distance between A and B is [tex]\sqrt{(1-2)^2 + (3-1)^2} = \sqrt{1+4} = \sqrt{5}$.[/tex]

The distance between B and C is [tex]\sqrt{(5-1)^2 + (5-3)^2} = \sqrt{16+4} = \sqrt{20}$.[/tex]

So, the length of the rectangle is [tex]\sqrt{20}$ units.[/tex]

The distance between A and D is [tex]\sqrt{(6-2)^2 + (3-1)^2} = \sqrt{16+4} = \sqrt{20}$.[/tex]

The distance between C and D is [tex]\sqrt{(6-5)^2 + (3-5)^2} = \sqrt{1+4} = \sqrt{5}$.[/tex]

Therefore, the width of the rectangle is [tex]\sqrt{5}$ units.[/tex]

Hence, the area of the rectangle is [tex]$\sqrt{20} \times \sqrt{5} = \sqrt{100} = 10$[/tex] square units. Thus, the answer is option D: 10 square units.

To learn more about area of rectangle visit:

https://brainly.com/question/2607596

#SPJ1

Answer:

They are 50 and 20 years old.

Step-by-step explanation:

5 years ago jack was 45 and his son was 15, which makes jack 3 times older than his son and has a 30 year difference.

to find two values for x that make an inequality true, we can choose values that satisfy the inequality, while to find two values that make it false, we can choose values that do not satisfy the inequality.

How to solve inequality?

A. x+3>70

To make this inequality true, we can choose x = 67 or x = 100. For x = 67, we have 67 + 3 > 70, and for x = 100, we have 100 + 3 > 70. To make the inequality false, we can choose x = 68 or x = 69. For x = 68, we have 68 + 3 < 70, and for x = 69, we have 69 + 3 < 70.

B. x+3<70

To make this inequality true, we can choose x = 0 or x = 1. For x = 0, we have 0 + 3 < 70, and for x = 1, we have 1 + 3 < 70. To make the inequality false, we can choose x = 67 or x = 100. For x = 67, we have 67 + 3 > 70, and for x = 100, we have 100 + 3 > 70.

C. -5x<2

To make this inequality true, we can choose x = 0 or x = -1/5. For x = 0, we have -5(0) < 2, and for x = -1/5, we have -5(-1/5) < 2. To make the inequality false, we can choose x = -2 or x = 1/5. For x = -2, we have -5(-2) > 2, and for x = 1/5, we have -5(1/5) > 2.

D. 5x<2

To make this inequality true, we can choose x = 0 or x = 1/5. For x = 0, we have 5(0) < 2, and for x = 1/5, we have 5(1/5) < 2. To make the inequality false, we can choose x = -2 or x = -1/5. For x = -2, we have 5(-2) > 2, and for x = -1/5, we have 5(-1/5) > 2.

In summary, to find two values for x that make an inequality true, we can choose values that satisfy the inequality, while to find two values that make it false, we can choose values that do not satisfy the inequality.

To know more about inequalities visit :-

https://brainly.com/question/25275758

#SPJ1

We can conclude that 10% of the football players complete their degree in five years.

How to investigate the university's claim?

To investigate the university's claim, we can set up a hypothesis test.

Null hypothesis: The proportion of football players who complete their degree in five years is 0.9.

Alternative hypothesis: The proportion of football players who complete their degree in five years is less than 0.9.

We can use a one-tailed binomial test to test this hypothesis. The test statistic is the number of football players who received their degree in our sample of 20. Under the null hypothesis, this follows a binomial distribution with n=20 and p=0.9.

We can calculate the probability of observing 14 or fewer football players receiving their degree if the true proportion is 0.9:

P(X ≤ 14) = Σ P(X = i) for i = 0 to 14

= binom.cdf(14, n=20, p=0.9)

≈ 0.001

This means that the probability of observing 14 or fewer football players receiving their degree in a random sample of 20, if the true proportion is 0.9, is only 0.001.

If we use a significance level of 0.05, this means we reject the null hypothesis if the p-value is less than 0.05. Since our p-value is much smaller than 0.05, we can reject the null hypothesis and conclude that the proportion of football players who complete their degree in five years is less than 0.9.

Therefore, based on the given sample, we cannot conclude that 90% of the football players complete their degree in five years.

So, we can conclude that 10% of the football players complete their degree in five years.

Learn more about probability here,

https://brainly.com/question/24756209

#SPJ1

We can conclude that 10% of the football players complete their degree in five years.

To investigate the university's claim, we can set up a hypothesis test.

Null hypothesis: The proportion of football players who complete their degree in five years is 0.9.

Alternative hypothesis: The proportion of football players who complete their degree in five years is less than 0.9.

We can use a one-tailed binomial test to test this hypothesis. The test statistic is the number of football players who received their degree in our sample of 20. Under the null hypothesis, this follows a binomial distribution with n=20 and p=0.9.

We can calculate the probability of observing 14 or fewer football players receiving their degree if the true proportion is 0.9:

P(X ≤ 14) = Σ P(X = i) for i = 0 to 14

= binom.cdf(14, n=20, p=0.9)

≈ 0.001

This means that the probability of observing 14 or fewer football players receiving their degree in a random sample of 20, if the true proportion is 0.9, is only 0.001.

If we use a significance level of 0.05, this means we reject the null hypothesis if the p-value is less than 0.05. Since our p-value is much smaller than 0.05, we can reject the null hypothesis and conclude that the proportion of football players who complete their degree in five years is less than 0.9.

Therefore, based on the given sample, we cannot conclude that 90% of the football players complete their degree in five years.

So, we can conclude that 10% of the football players complete their degree in five years.

Learn more about probability here,

brainly.com/question/24756209

#SPJ1

Answer:

The first step is to convert the annual interest rate to a monthly rate. We divide 14% by 12 months to get a monthly interest rate of 1.17%.

Next, we need to calculate the total number of months for the loan. Since the loan is for 2 years, or 24 months, we will make 24 payments.

To calculate the interest paid, we can use the formula:

I = P[(1 + r)^n - 1]

where:

I = interest paid

P = principal (amount borrowed) = $1200

r = monthly interest rate = 0.0117

n = total number of compounding periods = 24

Plugging in these values, we get:

I = 1200[(1 + 0.0117)^24 - 1]

I = $357.72

Therefore, the interest paid is $358.

Hope This Helps!

So the total area of the figure is 171 square meters.

Area is a measure of the size of a two-dimensional surface or region. It is usually expressed in square units, such as square meters (m²), square centimeters (cm²), or square feet (ft²). The concept of area is used in mathematics, geometry, and various fields such as architecture, engineering, and physics.

Here,

To find the total area of the figure, we need to find the areas of the rectangle and the triangle, and then add them together. The area of the rectangle is:

A = length x width

= 12 m x 9 m

= 108 m²

The area of the triangle is:

A = (1/2) x base x height

= (1/2) x 9 m x 14 m

= 63 m²

The base of the triangle is the same as the width of the rectangle, since they are adjacent and parallel. The other side of the triangle is the hypotenuse, which can be found using the Pythagorean theorem:

a² + b² = c²

where a and b are the legs of the right triangle, and c is the hypotenuse. In this case, we can use a = 9 m (the width of the rectangle) and b = 5 m (the distance between the rectangle and the triangle):

9² + 5² = c²

81 + 25 = c²

106 = c²

c ≈ 10.3 m

Therefore, the total area of the figure is:

total area = area of rectangle + area of triangle

total area = 108 m² + 63 m²

total area = 171 m²

To know more about area,

https://brainly.com/question/27458618

#SPJ1

The required probability of the candies in the bag having width between 1200 and 1225 is given by 16.67%.

The range of the number of skittles in the bag is 1150 to 1300 candies and is uniformly distributed.

This implies that the probability density function is a horizontal line over this interval.

The width of the interval we are interested in is 1225 - 1200 = 25 candies.

The total width of the interval is 1300 - 1150 = 150 candies.

The probability that the bag contains between 1200 and 1225 candies is equals to,

= ( Width of the required interval ) / (Total width of the interval )

= 25 / 150

= 0.1667

This means that the probability is 16.67% accurate to two decimal places.

Therefore, the probability of the bag contains candies between 1200 and 1225 is equal to 16.67%.

Learn more about probability here

brainly.com/question/16101289

#SPJ4

Answer:

To find the equation of the linear function, we need to first determine its slope, which is the rate of change of the function with respect to its input. We can use the slope formula: slope = (change in y) / (change in x) Using the two given points, we have: slope = (30 - 24) / (6 - 4) = 3 Now that we know the slope, we can use the point-slope form of the equation of a line to find the equation of the function: y - y1 = m(x - x1) where m is the slope, and (x1, y1) is one of the given points. Let's use the point (4, 24): y - 24 = 3(x - 4) Expanding and simplifying, we get: y = 3x -

Step-by-step explanation:

Look at point A ====>  A'

  x goes from 1 to 4           so X:  x + 3

  y goes from 7 to 3          so Y:   y - 4

Answer:

12a^3 +2a^2+23a+18

Step-by-step explanation:

Answer:

336in^2

Step-by-step explanation:

6 x 4 x 14

"The buetiful thing about learning is that no one can take it away from you" :)

Answer: 336

Step-by-step explanation: I just multiplied them all

To fill up the blanks such that each rectangle has the same area, we could assign the following numbers:

1. First two upper boxes in the first rectangle 2 and 4. The side box, 3.

2. For the two upper boxes in the second rectangle, we could assign the numbers, 10 and 8.

To find the area of a rectangle, you should multiply the length of the rectangle by its width. So, for the first rectangle, the sum of the length will be 6 and this will be multiplied by the width, which is 3.

Also, for the second rectangle, we could sum up the length to be 10 + 8 which is 18. If multiplied by 1, the result of the area will be 18.

Learn more about the area of a rectangle here:

https://brainly.com/question/25292087

#SPJ1

The graph represents a proportional relationship is a false statement.

Based on the graph, it appears to represent a linear relationship, where there is a constant rate of change between the two variables. However, it is not possible to determine if it represents a proportional relationship without knowing the specific context of the data being plotted.

If the variables represented in the graph have a proportional relationship, then the graph should be a straight line that passes through the origin (0,0). This is because in a proportional relationship, as one variable increases, the other variable increases or decreases in proportion to the change in the first variable. Therefore, the ratio between the two variables should remain constant.

If the graph in this example does not pass through the origin, then it is likely that the relationship between the variables is not proportional.

As sufficient data is not provided so this statement is false.

To know more about proportionality visit:

https://brainly.com/question/30657439?

#SPJ1

The probability that the large-cap domestic stock fund has a return of at least 17% is approximately 0.2776 or 27.76%.

To calculate the probability that the large-cap domestic stock fund has a return of at least 17%, we need to find the z-score first.

The z-score formula is:

Z = (X - μ) / σ

Where X is the desired return (17%), μ is the mean of 14.4%, and σ is the standard deviation of 4.4%.

Z = (17 - 14.4) / 4.4 = 2.6 / 4.4 ≈ 0.591

Now, using a z-table or calculator, we can find the probability associated with this z-score. The area to the left of the z-score in a standard normal distribution is approximately 0.7224. Since we want the probability of a return of at least 17%, we need to find the area to the right of the z-score.

P(X ≥ 17%) = 1 - P(X < 17%) = 1 - 0.7224 = 0.2776

So, the probability that the large-cap domestic stock fund has a return of at least 17% is approximately 0.2776 or 27.76%.

To learn more about Probability visit:

https://brainly.in/question/34187875

#SPJ1

The appropriate test to compare one sample to another sample to see if one is greater than another in some way is called a "two-sample hypothesis test."

In a two-sample hypothesis test, the null hypothesis states that there is no significant difference between the means of the two samples, while the alternative hypothesis states that there is a significant difference between the means.

The specific type of test used depends on several factors, including the type of data being compared, the sample sizes, and the level of significance desired. Commonly used tests include the t-test, z-test, and ANOVA.

It is important to choose the appropriate test for the data being analyzed to ensure accurate results and conclusions.

Learn more about two-sample hypothesis test here

brainly.com/question/29610907

#SPJ4

The improper fraction [(n² + 4)] / [(n + 5)] is not in simplest form for 2024 integers between 1 and 2023 inclusive.

We notice that the numerator of the fraction is always of the form n² + 4, which is always greater than or equal to 4 for any n. Also, the denominator is always positive, since n + 5 is always positive for n ≥ -5.

For the fraction to not be in simplest form, the greatest common divisor of the numerator and denominator must be greater than 1. Let's try to find the factors of the numerator:

n² + 4 = (n + 2i)(n - 2i)

where i is the imaginary unit. Therefore, the fraction [(n² + 4)] / [(n + 5)] is not in simplest form if and only if n + 5 is divisible by one of the factors (n + 2i) or (n - 2i), for some integer i ≠ 0.

Since n + 2i and n - 2i differ by 4i, they are either both odd or both even. Therefore, for n + 5 to be divisible by either of them, n must have the same parity (evenness or oddness) as i. If n is even, then n + 2i and n - 2i are also even, and their greatest common divisor is even. If n is odd, then n + 2i and n - 2i are also odd, and their greatest common divisor is odd.

Therefore, for each even n between 1 and 2023 inclusive, there are no factors (n + 2i) or (n - 2i) that divide n + 5, since they would have to be even and n + 5 is odd. For each odd n between 1 and 2023 inclusive, there are two factors (n + 2i) and (n - 2i) that divide n + 5, namely i and -i. Therefore, the improper fraction [(n² + 4)] / [(n + 5)] is not in simplest form for exactly 2 times the number of odd integers between 1 and 2023 inclusive.

There are (2023 - 1) / 2 + 1 = 1012 odd integers between 1 and 2023 inclusive, so the answer is 2 * 1012 = 2024. Therefore, the improper fraction [(n² + 4)] / [(n + 5)] is not in simplest form for 2024 integers between 1 and 2023 inclusive.

Learn more on improper fraction here;

https://brainly.com/question/387381

#SPJ1

Answer:

C.)

Step-by-step explanation:

1.) First find the slope of the perpendicular line. The slope of the perpendicular line is the number that when multiplied by the slope of the initial line, you get -1. The slope of the line is 3/8, and -8/3 * 3/8 is -1, therefore -8/3 is the slope of the new line.
2.) Now, since we have a slope if you look at the options, there is only one option with the slope -8/3, which is option C.).

The value of x in given figure is a whole number that is x = 6.6

When two tangent segment are drawn from an outside point to a circle, the sum of the dimensions of the first tangent segment and its exterior tangent segment equals the sum of the dimensions of the other secant segments and its exterior secant segment.

Given the image and the labelled measurement of two secant segments outside the predetermined circle that have a similar endpoint. We are required to determine what x's value is.

With these measurements, we can use the secant-secant theorem to solve for the value of x as we refer to and analyse the figure. We will therefore have this theorem applied.

(5) [(5) + ( x+4)] = (6) [6 + 7]

(5) [5+x+4] = (6) [13}

5 [9 + x] = 78

45 + 5x = 78

5x = 33

x = 6.6

Therefore the value of x is 6.6

Learn more about tangent segment here

https://brainly.com/question/31179315

#SPJ1

Answer: y= 2x-5

Step-by-step explanation:

y = mx + b

where m is the slope of the line and b is the y-intercept.

To get the equation into slope-intercept form, you need to isolate the y-term on one side of the equation and simplify the rest of the equation. So, let's start with 6x - 3y - 15:

6x - 3y - 15 = 0 (I'm assuming this equation represents a line)

Now, let's isolate the y-term by subtracting 6x from both sides:

-3y = -6x + 15

Finally, let's solve for y by dividing both sides by -3:

y = 2x - 5

The domain of a function refers to the set of all values of the independent variable (usually denoted by x) for which the function is defined.

For the function f(x) = 2, the expression is defined for all real values of x. Therefore, the domain of f(x) is all real numbers.

If the function was f(x) = 2 / (x - 9), then the expression is undefined for x = 9. Therefore, the domain of f(x) would be all real numbers except 9.

If the function was f(x) = 2 / (x - 3)(x + 3), then the expression is undefined for x = 3 and x = -3. Therefore, the domain of f(x) would be all real numbers except 3 and -3.

If the function was f(x) = sqrt(2x - 5), then the expression is only defined for values of x that make the argument of the square root non-negative. Therefore, the domain of f(x) would be all real numbers such that 2x - 5 >= 0, which simplifies to x >= 5/2.

Therefore, without more information about the function, it is impossible to determine its domain.

Answer:

C. ∠ZXY and D. YX

Step-by-step explanation:

C. ∠ZXY

because the middle letter is always the angle or the turning point of an angle and also it is in order based on the diagram. The angle won't change even if you look at it on a different point of view or if the diagram was flipped.

D. YX

because the line YX is a true statement because XY or YX is on the same line that goes on and on. You can tell because there's arrows on the end of the line.

Thus, the two factors of quadratic expressions found after factorization are 2 and 3.

Factorization is the technique of expressing a given statement as the product between two or more components. The sum of the greatest common factors of the integer coefficients and the same letters with the smallest powers yields the greatest common factor for two or more monomials.

Given quadratic expressions:

=  x² - 5x + 6

To factorize the expression, find the factors of 6 such that on addition it becomes -5.

= x² - 3x - 2x + 6

Taking x common from first two terms and -2 from last two terms.

= x(x -3) -2(x - 3)

Taking (x - 3) common.

= (x - 3)(x - 2)

x -3 = 0

x = 3

and, x - 2 = 0

x = 2

Thus, the two factors of quadratic expressions found after factorization are 2 and 3.

Know more about the factorization

https://brainly.com/question/25829061

#SPJ1

Complete question:

Factorize quadratic expressions:  x² - 5x + 6

Step-by-step explanation:

Perhaps you entered your question incorrectly

maybe you meant

x^2 -x + 6     THIS factors to

(x-3)(x+2)     <=====if you multiply this out, you will see = x^2 -x+6

Are you familiar with the Quadratic Formula ?

   for this Quadrtatic     a = 1      b = -1      c = 6

    if you plug these numbers into the Quadratic Formula you get the roots:

            x = 3   and x = -2

       then you know the quadratic is   (x-3)(x+2)

Answer:

B) 4 cubes

Step-by-step explanation:

V = s³

[tex] s = \sqrt[3]{V} [/tex]

[tex] s = \sqrt[3]{64} [/tex]

[tex] s = 4 [/tex]

The possible unit rate for Josh is 2.91 minutes per mile. However, keep in mind that this is just one possible rate and there could be other values that satisfy the conditions given in the problem.

Unit rate is a rate that is simplified to have a denominator of 1.

In other words, it is a ratio that compares two measurements with one of the measurements set to 1.

For example, if a car travels 100 miles in 2 hours, the unit rate for the car's speed would be 50 miles per hour.

Kody's unit rate can be found by dividing the time taken by the distance covered:

Unit rate = Time / Distance = 80 minutes / 35 miles = 2.29 minutes per mile (rounded to two decimal places).

To find a possible unit rate for Josh, we can use the fact that he rode at a faster rate per mile than Kody. Let's say that Josh's unit rate is x minutes per mile. Since he rode for 102 minutes, we can set up the following equation:

35 miles x (minutes per mile) = 102 minutes

Solving for x, we get:

x = 102 minutes / 35 miles = 2.91 minutes per mile

To know more about mile visit:

https://brainly.com/question/28161927

#SPJ1

The quadratic function graphed is defined as follows:

C) y = x² - x - 2.

The factored format of a quadratic function is given as follows:

y = a(x - x*)(x - x**)

In which the parameters are given as follows:

From the graph, we have that it crosses the x-axis at x = -1 and x = 2, hence the x-intercepts are given as follows:

x* = -1, x** = 2.

Hence:

y = a(x + 1)(x - 2)

y = a(x² - x - 2).

When x = 0, y = -2, hence the leading coefficient a is given as follows:

-2a = -2

a = 1.

Thus the equation is:

y = x² - x - 2.

More can be learned about quadratic functions at https://brainly.com/question/1214333

#SPJ1

Answer:

The area of rectangle is Length × Breadth

Step-by-step explanation:

You have already learnt that perimeters of plane figures and areas of squares and rectangles. Perimeter is the distance around a closed figure while area is the part of plane or reason occupied by the closed figure.

[tex] \sf \: Squares \: and \: Rectangles[/tex]

Ananya and samira made pictures. Ananya made her picture on a rectangular sheet of length 60 cm and breadth 20 cm while samira made hers on a rectangular seat of length 40 cm and breadth 35 cm. Both these pictures have to be separately framed and laminated.

Who has to pay more for farming is the cost of farming is $3.00 per cm?

If the cost of lamination is $2.00 per cm², who has to pay more for lamination?

For finding the cost of farming, we need to find perimeter and then multiply it by the rate for farming. For finding the cost of lamination we need to find area and then multiply it by the rate of lamination.

Find the area of the rectangle whose Length is 4 cm and breadth/width is 6 cm .

Answer:

The area of the rectangle is 24 cm²

Step-by-step explanation:

Length of rectangle = 4 cm

Breadth of rectangle = 6 cm

[tex] \bf \: Formula \: used[/tex]

[tex] \sf \: Area_ { \{Rectangle \}} = Length × Breadth[/tex]

Now put values

[tex] \sf \: Length = 4 cm [/tex]

[tex] \sf \: Breadth = 6 cm[/tex]

[tex] \sf \: Length × Breadth = 4 × 6 \: cm [/tex]

[tex] \sf \implies 24 \: cm \ {}^{2} [/tex]

Always remember if we find area :-

After units like centimetres,metres we always put (²) on these units.

Like :- 26 cm², 56 m ²

In words = Twenty six centimetre square, Fifty six centimetre square

The area of rectangle is 24 cm²

Perimeter

Area

♦ Area of Rectangle

[tex] \underline{ \rule{140pt}{4pt}}[/tex]

Area - Region occupied by figure is called area.

[tex] \large \bf{ \mathfrak{{More \: Formulas \: \red{( Area)}}}}[/tex]

[tex] \large \sf \leadsto \: triangle = \frac{1}{2} \times bh[/tex]

[tex]\large \sf \leadsto \: \: Rectangle \: = \: lb[/tex]

[tex]\large \sf \leadsto \: \: Square \: = {s}^{2} [/tex]

[tex]\large \sf \leadsto \: \: Parallelogram \: = \: bh[/tex]

[tex]\large \sf \leadsto \: \: Rhombus \: = \: \frac{1}{2} \times \: d1 \times d2[/tex]

[tex]\large \sf \leadsto \: \: Trapezium \: = \frac{1}{2} \times (x + y) \times h[/tex]

[tex]\large \sf \leadsto \: \: Quadrilateral \: = \: \frac{1}{2} \times d(h1 + h2)[/tex]

[tex]\large \sf \leadsto \: Circle \: = {\pi \: r}^{2} [/tex]

[tex]\large \sf \leadsto \: \: Equilateral \triangle \: = \frac{ \sqrt{3} }{4} \times {s}^{2} [/tex]