What is the shape formed by a vertical cross-section through the vertex of the pyramid in the
image?
O Circle
O Triangle
O Rectangle
O Trapezoid

Sorry about the first time

Answer:

1) 10x

2)360-(5x+20)-10x-(7x-8) (I think?)

3) 7x-8

4) 5x+20

Step-by-step explanation:

Answer:

x=15.8degrees

Step-by-step explanation:

10x+5x+7x+20-8=360

22x+12=360

=22x=360- 12

22x=348

x=15.8 degrees

Answer: a graph of a line that passes through the points negative 1 comma 2 and 0 comma negative 3.

Step-by-step explanation: the y-intercept is where the line meets the y line which in this case is -3. I used slope formula to find the m of the equation ( slope ) take a look at the attached image to see how I solved it.

Answer:

a graph of a line that passes through the points negative 1 comma 2 and 0 comma negative 3.

Step-by-step explanation:

Answer:

To find the area of the shaded region

A = Area of circle - Area of square

12cm is the diagonal of the square and diameter of the circle.

To find the side of the square,

d = √2 * s

12cm = √2 * s

s = 8.49cm

Area of square = L²

As = (8.49)²

As = 72.1cm²

Area of circle = πr²

r = 6cm

Ac = (π*36)cm²

Ac = 113.1cm²

A = Ac - As

A = 113.1cm² - 72.1cm²

A = 41cm²

The area of the shaded region is 41cm².

Answer: I can't tell from the photo which is the shaded part. I'll answer on the assumption it is either the square in the circle, or the 4 areas defined by the semicircles outside the square, but inside the circle.

Step-by-step explanation: Note the caveat above.

Circle Area = pi*r^2 or (3.14)*(6cm)^2 = 113.1 cm^2

Area of the square: The 12cm line forms an hypotenuse with either side. The sides are all equal, so if x is 1 side, we can say the area is x^2. We also know tha x^2 + x^2 = 12

x^2 = 6 cm^2 (the area of the square)

The two possible answers:

1) Shaded portion is the square: 6 cm^2

2) Shaded area means the 4 semicircles outside the square but within the circle: 113.1 cm^2 - 6 cm^2 = 107.1 cm^2

The earnings per share can be calculated as $0.066 per share (rounded to the nearest cent).

a. The earnings per share for Company XYZ can be calculated by dividing the closing price by the P/E ratio. In this case, the closing price is $100.76 and the P/E ratio is 1525. Therefore, the earnings per share can be calculated as $0.066 per share (rounded to the nearest cent).

b. Based on the historical P/E ratio range of 12-14, the stock price of Company XYZ seems overpriced. The P/E ratio indicates the price investors are willing to pay for each dollar of earnings generated by the company. A higher P/E ratio suggests that investors have higher expectations for future earnings growth. In this case, the P/E ratio of 1525 is significantly higher than the historical range of 12-14, indicating that the stock is being valued at a much higher premium relative to its earnings. This suggests that the stock price may be inflated and not in line with the company's historical valuation metrics, indicating an overpriced condition.

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Therefore, 1/10th of the value of the digit 4 in the number 912.43 is 0.04. This means that if we take 1/10th of the value of the digit 4, we get a result of 0.04.

In the number 912.43, each digit has a specific place value based on its position relative to the decimal point. The digit 4 is located in the tenths place, which means its value represents a fraction of 1/10.

To determine the value of the digit 4, we can break down the number as follows:

The digit 4 is in the tenths place, so its value is 4/10 or 0.4.

The digit 3 is in the hundredths place, so its value is 3/100 or 0.03.

The digit 2 is in the ones place, so its value is 2.

To find 1/10th of the value of the digit 4, we simply divide its value by 10:

1/10 * 0.4 = 0.04

Therefore, 1/10th of the value of the digit 4 in the number 912.43 is 0.04. This means that if we take 1/10th of the value of the digit 4, we get a result of 0.04.

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Answer:

A)     \(m = \frac{1}{4}\)

Step-by-step explanation:

Step(i):-

Given that the points are(-1,2) and (3,3)

Slope of the line

               \(m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} }\)

Step(ii):-

Slope of the line

               \(m = \frac{y_{2}-y_{1} }{x_{2} -x_{1} }\)

             \(m = \frac{ 3-2}{3-(-1) }= \frac{1}{3+1} = \frac{1}{4}\)

             \(m = \frac{1}{4}\)

Represent the number of dogs as x

Then, the number of cats is (x+2) x 2 = 2x + 4 (the number of dogs is two less than twice the number of cats -> the number of cats is 2 more than twice the amount of dogs)

There is a total of 25 animals -> 2x + 4 + x = 25
Simplify as 3x + 4 = 25
3x = 25 - 4 = 21
x = 21/3 = 7

So, there are 7 dogs, and 25-7 = 18 cats.

The value of z for p(-z<z<+z) given as 0.7062 will be 0.5423 as z is the standard normal variable.

A normal distribution with a mean of zero and a standard deviation of one is known as the standard normal distribution. The standard normal distribution is centered at zero, and the standard deviation indicates how far a specific measurement deviates from the mean. In the scientific and social sciences, every type of variable is normally or roughly normally distributed. These factors include things like height, birth weight, reading proficiency, work happiness, or SAT scores, to name just a few. To standardize a value from a normal distribution, create a z-score from the individual value: Make a subtraction of the mean from your personal value. The difference should be divided by the standard deviation.

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Answer:

2

Step-by-step explanation:

(4-5)-(13-18+2)

=-1-(13-18+2)

=-1-(-5+2)

=-1(-3)

=2

Answer:

5

Step-by-step explanation:

Since the two lines are parallel, they must have the same slope. This means that the slope of green line must be 5 just like the red line. You can also use the slope formula (rise/run) or change in y divided by change in x.

Answer:

Its -5/96 in fraction form and −0.052083 repeating in decimal form.

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

Answer:

what do you need help with

Step-by-step explanation:

The simplified form of the given expression is -18. The correct option is the third option-  -18

From the question, we are to simplify

|3-10| - (12 ÷ 4 + 2)²

Simplifying

|3-10| - (12 ÷ 4 + 2)²

|-7| - (3 + 2)²

7 - (5)²

7 - 25

= -18

Hence, the simplified form of the given expression is -18. The correct option is the third option-  -18

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The probability that the sample proportion will be between .25 and .35 is 0.724.

What is the probability?

Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes and how likely they are. The analysis of events governed by probability is called statistics. Explore all similar answers.

The probability that the sample proportion will be between .25 and .35 is 0.724

(a) The sampling distribution

The given parameters are:

n = 100 and p = 0.3

So, the sampling distribution of the study is:

\(\sigma = \sqrt{\frac{p * (1-p)}{n}}\)

This gives

\(\sigma = \sqrt{\frac{0.3 * (1- 0.3)}{100}}\)

σ = 0.046

The probability that the sample proportion will be between .20 and .40

p = p(0.2 < p < 0.4)

To do this, we make use of:

The z values at p = 0.2 and p = 0.4 for the distribution are -2.18 and 2.18.

So, we have:

Using the standard normal table, the result is:

p = 0.724

So, the probability that the sample proportion will be between .20 and .40 is 0.971

The probability that the sample proportion will be between .20 and .40

p = p(0.25 < p < 0.35)

To do this, we make use of:

The z values at p = 0.25 and p = 0.35 for the distribution are -1.09 and 1.09.

So, we have:

p = p(-1.09 < z < 1.09)

Using the standard normal table, the result is:

p=0.724

Hence, the probability that the sample proportion will be between .25 and .35 is 0.724.

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The proportion of students with a z-score between -1.20 and -0.30 is about 0.304. So for every 100 students.

What is the z-score?

Z-score indicates how much a given value differs from the standard deviation. The Z-score, or standard score, is the number of standard deviations a given data point lies above or below the mean. Standard deviation is essentially a reflection of the amount of variability within a given data set.

Assuming that the grading follows a standard normal distribution (i.e., with a mean of 0 and a standard deviation of 1), we can use the z-score formula to find the proportions of students that fall within each grade range:

For an A grade: z-score > 1.65

For a B grade: 0.67 < z-score ≤ 1.65

For a C grade: -0.40 < z-score ≤ 0.67

For a D grade: -1.60 < z-score ≤ -0.40

To convert from the standard normal distribution to the distribution with the course mean and standard deviation, we can use the formula:

z-score = (x - mean) / standard deviation

We don't know the actual mean and standard deviation for the course, so we'll use the given range for the D grade (-1.60 < x < -0.4σ) to estimate the standard deviation. Since the D grade range is 1.2 standard deviations wide (from -1.60 to -0.4σ), we can solve for the standard deviation:

1.2σ = -1.60

σ = -1.60 / 1.2

σ = 1.33

(Note that we have a negative value for σ, which is not possible for a standard deviation. This is because we are using the estimated value of σ to convert from the standard normal distribution to the course distribution, which may not perfectly match the actual distribution of grades.)

Now we can use the z-score formula with the estimated mean and standard deviation to find the proportions of students in each grade range:

For an A grade: z-score > 1.65

z-score = (x - mean) / standard deviation

z-score = (1.65 - 0) / 1.33

z-score = 1.24

From standard normal distribution tables or a calculator, we can find that the proportion of students with a z-score greater than 1.24 is about 0.107. So for every 100 students, we can expect about:

A grades: 100 * 0.107 = 10.7 or approximately 11

For a B grade: 0.67 < z-score ≤ 1.65

z-score = (0.67 - 0) / 1.33

z-score = 0.50

From standard normal distribution tables or a calculator, we can find that the proportion of students with a z-score between 0.50 and 1.24 is about 0.205. So for every 100 students, we can expect about:

B grades: 100 * 0.205 = 20.5 or approximately 21

For a C grade: -0.40 < z-score ≤ 0.67

z-score = (-0.40 - 0) / 1.33

z-score = -0.30

From standard normal distribution tables or a calculator, we can find that the proportion of students with a z-score between -0.30 and 0.50 is about 0.307. So for every 100 students, we can expect about:

C grades: 100 * 0.307 = 30.7 or approximately 31

For a D grade: -1.60 < z-score ≤ -0.40

z-score = (-1.60 - 0) / 1.33

z-score = -1.20

Hence, From standard normal distribution tables or a calculator, we can find that the proportion of students with a z-score between -1.20 and -0.30 is about 0.304. So for every 100 students,

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Answer:

the triangular prism is ⅓ the size of the rectangular prism. they have the same concept equation of:

rectangular prism - length×width×height

triangular prism - ½×length×width×height

they both have to multiply the base and height to find the volume

Answer:

Finding the volume of a rectangular and triangular prism are alike, one way is they use similar formula base x length x height. Another way is They both have rectangle in the prism.

Step-by-step explanation:

Answer:

im gonna guess that the x's aren't multiplication, the answer is 14x+20

The jar of glitter was used for each poster is 4/3

Given,

In the question:

Brad used 1/3 jar of glitter evenly among 4 posters.

To find the  how much of the jar of glitter was used for each poster?

Now, According to the question;

Based on the given conditions:

Formulate;

Brad used 1/3 jar of glitter

and, evenly among 4 posters.

= \(\frac{1}{\frac{3}{4} }\)

Calculate:

Divide a fraction by multiplying its reciprocal

= 4/3

Hence, The jar of glitter was used for each poster is 4/3

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Answer:

8/50

Step-by-step explanation:

2/10 x 4/5 = 8/50

Hope that helps!

Answer:

165m

Question:

Artur, Olga and Wiktor participated in the race. They started from the same place at the same time and run at constant speeds. When Artur finished the race, Olga was 15 m to the finish, and Wiktor was 35 m. When Olga finished the race, Wiktor had 22 m to the finish. At what distance was the race held?

Explanation:

Let distance be x meters

Fist statement:

Artur distance = x

Olga =x-15

Wiktor = x-35

Since they are going at constant speed, time is constant for all 3.

Their speed = distance/time

x/t, (x-15)/t, (x-35)/t respectively

Second statement:

Olga distance = x

Wiktor distance = x-22

Their Time is constant:

If it takes (x-15) in t secs,

for x meters will take = xt/(x-15)

Olga and wiktor respectively: xt/(x-15), xt/(x-15) respectively

Their speed:

Speed = distance/time

Olga = (x-15)/t,

Wiktor = (x-22)(x-15)/(xt)

Since speed is constant

Speed for Wiktor in both cases:

(x-35)/t =(x-22)(x-15)/(xt)

x(x-35) =(x-22)(x-15)

x² -35x = x² - 15x -22x +330

-35x = -37x +330

2x = 330

x = 165m

Race held at 165m distance.

Answer:

B) 18

Step-by-step explanation:

6 out of 18 is 6/18 = 1/3

1/3 x 54 = 18

Answer:

It means you put full effort into what you're doing, because in math, 100% is perfect, but 110% is more than perfect, so they are saying she put extreme effort into the problem.

Answer:

There are 775 - 91 + 1 = 685 integers.

In the given range, the smallest multiple of 14 is 98, and the largest multiple of 14 is 770. ((770-98)/14) + 1 = 49 multiples of 14.

So the probability of choosing a multiple of 14 from this range is 49/685.

Answer:

What shapes?!?! I can help you if you add an image of the shapes :)

Step-by-step explanation:

The simplified expressions based on the information is given below.

An expression is simply used to show the relationship between the variables that are provided or the data given regarding an information.

U: 2x-2-6x+6 = -4x+4

U: -2(2x+3)+2 = -4x-4

T: -4(x+1) = -4x-4

R: -x+1+5x+3 = 4x+4

R: 2(-2x+2)-8 = -4x-4

H: -3x-x+4 = -4x+4

P: 4(-x+1) = -4x+4

E: -4x+4(2x-1) -2(2x+1)+6 = 4x-2

B: -3x-x+5-9 4(x+1) = x+8

T: -1(2x+2)-(2x+2) = -4x-4

H: 2(x-1)+(2x-2) = 4x-2

D: 2(2x+1)+2 = 4x+4

IN: -5x+3-7+x = -4x-4

T: -4(-x+1) = 4x-4

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No, there is significant difference in the use of e readers by different age groups.

Given sample 1 ( 29 years old) \(n_{1}\)=628, \(p_{1}\)=7%, sample 2( 30 years old)\(n_{2}\)=2309, \(p_{2}\)=0.11.

We have to first form hypothesis one null hypothesis and other alternate hypothesis.

\(H_{0}:\)π1-π2=0

\(H_{1}:\)π1-π2≠0

α=0.05

Difference between proportions \(p_{1}-p_{2} =-0.04\)

\(p_{d}=0.07-0.11=-0.04\)

The pooled proportion needed to calculate standard error is:

\(p=(X_{1} -X_{2} )/(n_{1} +n_{2} )\)

=(44+254)/(628+2309)

=0.10146

The estimated standard error of difference between means is computed using the formula:

\(S_{p_{1} -p_{2} }=\sqrt{p(1-p)/m_{1}+p(1-p)/n_{2} }\)

=\(\sqrt{0.101*0.899/628+0.101*0.899/2309}\)

=\(\sqrt{0.000143+0.00003}\)

=\(\sqrt{0.000173}\)

=0.01315

Z= Pd-(π1-π2)/\(S_{p_{1} -p_{2} }\)

=-0.04-0/0.013

=-3.0769

This test is a two tailed test so the p value for this test is calculated as (using z table)

p value:2 P(Z<-3.0769)

=2*0.002092

=0.004189

P value< significance level of 5%.

Hence there is enough evidence to show the claim that there is a significant difference in the use of e readers by different age groups.

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Question is incomplete as it also includes:

Significance level of 5%.

Answer:

y1 - y2/x1 - x2

1. -3/8

5 - 2/0 - 8

3/-8

-3/8

2. 1/2

1 - (-1)/6 - 2

1 + 1/4

2/4

1/2

3. -1 1/2

-5 - (-2)/-1 - (-3)

-5 + 2/-1 + 3

-3/2

-1 1/2

Answer:A

Step-by-step explanation: 1 Gallon is equal to 8 pints.

Answer:

A

Step-by-step explanation:

pint=1/8 of a gallon

therfor 7 pints = 7/8

7/8<1gal