This is due today and I don’t really get it so I need some help!

Answer:

  13.425¢ per pencil

Step-by-step explanation:

The per-pencil cost is the total cost divided by the number of pencils.

The total cost is the cost for 200 pencils plus the cost for shipping:

  total cost = $19.90 +6.95 = $26.85

The cost per pencil is ...

  total cost / number of pencils = $26.85 / 200 = $0.13425 = 13.425¢

The average cost per pencil is 13.425 cents.

Answer:

143 50

Step-by-step explanation:

I hope it helps pa brainlest po

Answer:

From top to bottom: 1/8, 2 1/2, 3

Step-by-step explanation:

The first number means that it take 8 quarters to equal a toonie and you don't have a toonie with 1 quater

brainliest please

Assuming a basic rectangular calculator, we can consider rotating it around different axes, such as the x-axis or the y-axis. The resulting solid may be a cylinder, a solid with a hole, or a more complex shape.

To find the volume of the solid generated by revolving a calculator, we first need to determine the shape formed when the calculator is rotated around a given axis. Let's consider two scenarios:

Rotation around the x-axis:

If the calculator is rotated around the x-axis, the resulting solid will be a solid with a hole. The outer shape is a cylinder, and the hole in the center represents the volume of the calculator. To calculate the volume, we can use the formula for the volume of a cylinder, subtracting the volume of the hole. If the radius of the calculator is given as r and the height as h, the volume can be calculated as V = πr^2h - πr^2h', where h' is the thickness of the calculator.

Rotation around the y-axis:

If the calculator is rotated around the y-axis, the resulting solid will be a cylinder without a hole. The radius of the cylinder will be the width of the calculator, and the height will be the thickness. In this case, the volume can be calculated directly using the formula for the volume of a cylinder, V = πr^2h, where r is the width and h is the thickness of the calculator.

By determining the shape formed by the rotation and applying the appropriate volume formula, we can calculate the volume of the solid generated by revolving the calculator.

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In 2.63  hours the prices of the two stocks be the​ same

Two or more expressions with an Equal sign is called as Equation.

Given,

The price of Stock A at 9 A.M. was $12.71.

Price has been increasing at the rate of $0.08 each hour

Price of Stock B was $13.21

The price has been decrease at the rate of $0.11 each hour.

We can write in the form of equation , to find how many hours will the prices of the two stocks be the​ same

12.71+0.08h=13.21-0.11h

0.11h+0.08h=13.21-12.71

0.19h=0.5

Divide both sides by 0.19

h=0.5/0.19

h=2.63

Hence, in 2.63  hours the prices of the two stocks be the​ same

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Answer:

4.69 inches (2 decimal places)

Step-by-step explanation:

Refer to image attached to this answer:

Using Pythagoras Theorem:

\(AB^2+AC^2=BC^2\)

\(2^2+3^2=BC^2\)

\(4+9=BC^2\)

\(BC^2=13\)

-------------------------

Using Pythagoras Theorem,

\(BC^2+CD^2=BD^2\ (x)\)

\(13+3^2=BD^2\)

\(13+9=BD^2\)

\(BD=\sqrt{22} = 4.69\ (2d.p.)\)

First, we have to find the last remaining side of the leftmost triangle.

We can use the Pythagorean theorem.

The Pythagorean theorem: a^2 + b^2 = c^2

a = one leg

b = the second leg

c = the hypotenuse

In this problem,

a = 3

b = 2

c = ?

Let's plug our numbers into the Pythagorean theorem.

3^2 + 2^2 = c^2

Simplify the left side

9 + 4 = c^2

Add together like terms

13 = c^2

Take the square root of both sides

\(\sqrt{13}\) = c

Now we can use the Pythagorean theorem on the rightmost triangle to find x.

a = 3

b = \(\sqrt{13}\)

c = x

let's plug our values into the Pythagorean theorem.

3^2 + (\(\sqrt{13}\))^2 = (x)^2

Simplify the left side

9 + 13 = x^2

Add together like terms

22 = x^2

Take the square root of both sides

\(\sqrt{22}\) = x

But the problem is asking for the approximate value, the approximate value of \(\sqrt{22}\) = 4.69 in

Answer: 9.92

Step-by-step explanation: https://nomseagles.weebly.com/uploads/7/3/7/4/73741189/percent_practice_test_key.pdf   On question 20

Answer:

he can buy 4 sheets of paper to print 16 pages

he will have 0.10 cents left

Step-by-step explanation:

With each piece of paper, he can print 4 pages

He has a full dollar

1/0.25 = 4

he can print 4 pages because the last 10 cents will not be enough to print another page

4 * 4 = 16

He will not be able to print all the pages

No, the variances are not similar enough to use the pooled t test. The ratio of the two variances (25/8) is greater than 3, which is the typical cutoff for determining similarity of variances. Therefore, an alternative method such as the Welch's t-test or a non-parametric test should be used to compare the means.

To determine if the variances are similar enough to use a pooled t-test, you can perform an F-test for equality of variances. Follow these steps:

1. Calculate the F statistic by dividing the larger variance by the smaller variance: F = var2 / var1 = 25 / 8 = 3.125.

2. Determine the degrees of freedom for each group: df1 = 10 - 1 = 9 and df2 = 10 - 1 = 9.

3. Check the F critical value for the given degrees of freedom and chosen significance level (e.g., 0.05) using an F-distribution table or a calculator. For df1 = 9 and df2 = 9 at a 0.05 significance level, the F critical value is approximately 3.18.

4. Compare the calculated F statistic to the F critical value: 3.125 < 3.18.

Since the F statistic is less than the F critical value, we fail to reject the null hypothesis that the variances are equal. Therefore, the variances are similar enough to use the pooled t-test to evaluate differences in the means. The answer is yes.

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Answer:

2 sixths are in 1/3

Step-by-step explanation:

2/6 = 1/3

Answer:

2

Step-by-step explanation:

It takes two one-sixths to make a third. We can see that there are 1 × \(\frac{1}{6}\) = 6 sixths in a whole.

(a) {2, 3, 4, 5, 6, 7, 8}

(b) {2, 4, 5, 9, 11, 12, 14}

(c) No next largest 7-subset; this is the last one in lexicographic order.

(d) {2, 4, 5, 6, 11, 12, 13}

(e) No next largest 7-subset; this is the last one in lexicographic order.

If all of the items in a set A are also in a set B, then the sets A and B are subsets of one another. To put it another way, the set A is contained within the set B. A and B stand for the subset connection.

For instance, if A represents the set of natural numbers and B represents the set of all whole numbers, then B is a subset of A since the set of whole numbers contains all natural numbers. This is how we may comprehend it: Natural numbers 1, 2, 3, and so on make up the set A. B = A collection of whole numbers, such as "0, 1, 2, 3,..."

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As a shareholder of common shares in a public company, there are various benefits available to you. Firstly, you have ownership of a portion of the company, which can give you a say in the company's decision-making processes.

Additionally, you may receive coupon payments from the issuer, which is the company that has issued the shares. You may also receive dividends from the company, if the company pays them out. Dividends are a portion of the company's profits that are distributed to shareholders.

Another benefit is that you have the right to vote on members of the board of directors, who oversee the company's management and make important decisions. As a shareholder, you can also select members of the management team, such as the CEO or CMO, by voting for them. It's important to note that not all companies pay dividends, and there may be restrictions on voting rights depending on the type of shares you hold.

Overall, owning common shares in a public company can provide potential financial benefits and a say in the company's direction.

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Step-by-step explanation:

\(m = \frac{r - s}{2nr} \)

m(2nr) = r-s

2×n×r×m = r-s

move the r on the right side to the left side

2nrm - r = -s

r ( 2nm - 1 ) = -s

\(r \: = \frac{ - s}{(2nm - 1)} \)

Answer:

I think it will help you

The final equation for the tangent plane to the graph of f at the point (a, b) is z = 2e^a(x - a) - y + 2e^a - 2b. This equation represents the plane that is tangent to the graph of f at the specified point (a, b).

To find the equation for the tangent plane to the graph of the function f(x, y) = 2e^x - y at a given point (x0, y0), we need to calculate the partial derivatives of f with respect to x and y at that point.

The partial derivative of f with respect to x, denoted as ∂f/∂x or fₓ, represents the rate of change of f with respect to x while keeping y constant. Similarly, the partial derivative of f with respect to y, denoted as ∂f/∂y or fᵧ, represents the rate of change of f with respect to y while keeping x constant.

Let's calculate these partial derivatives:

fₓ = d/dx(2e^x - y) = 2e^x

fᵧ = d/dy(2e^x - y) = -1

Now, we have the partial derivatives evaluated at the point (x0, y0). Let's assume our point of interest is (a, b), where a = x0 and b = y0.

At the point (a, b), the equation for the tangent plane is given by:

z - f(a, b) = fₓ(a, b)(x - a) + fᵧ(a, b)(y - b)

Substituting fₓ(a, b) = 2e^a and fᵧ(a, b) = -1, we have:

z - f(a, b) = 2e^a(x - a) - (y - b)

Now, let's substitute f(a, b) = 2e^a - b:

z - (2e^a - b) = 2e^a(x - a) - (y - b)

Rearranging and simplifying:

z = 2e^a(x - a) - (y - b) + 2e^a - b

The final equation for the tangent plane to the graph of f at the point (a, b) is z = 2e^a(x - a) - y + 2e^a - 2b.

This equation represents the plane that is tangent to the graph of f at the specified point (a, b).

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what went wrong

the student did not cross multiply, and instead multiplied within each fraction.

rework the problem

mx24=8x15

m=120/24

m= 5

helpful strategy

draw a line from each value to the one you're multiplying it by

practice problems

12/z = 15/20

Answer:

87 || 2,700 || 2,787

Step-by-step explanation:

29x3=87

180x15=2,700

2,700+87=2,787

Answer:

x>3

y≥2x-5

Step-by-step explanation:

graph them

Answer:

Part A: 2 (20 × 50) + 2(20 × 10)

Part B: 1200 cm²

Step-by-step explanation:

Part A:

2 (20 × 50) + 2(20 × 10)

= 2(1000) + 2(200)

= 2000 + 400

= 2400

Part B:

Divide the answer by 2.

= 2400/2

= 1200 cm²

Because the formula to find the area of a kite is

1/2 x (p x q), where p is the sum of a diagonal and d is the sum of a diagonal.

Answer:

c is 2,7

Step-by-step explanation:

Under the given transformation, the image of the set S = {(u, v) | 0 ≤ u ≤ 3, 0 ≤ v ≤ 2} is the set {(x, y) | 0 ≤ x ≤ 12, -2 ≤ y ≤ 3}.

To find the image of the set S under the given transformation, we substitute the bounds of S into the equations for x and y and determine the resulting range of values.

The set S is defined as {(u, v) | 0 ≤ u ≤ 3, 0 ≤ v ≤ 2}. We will find the image of each boundary point and then determine the range of values for the transformed set.

For u = 0 and v = 0:

x = 2(0) + 3(0) = 0

y = 0 - 0 = 0

The point (0, 0) is transformed to (0, 0).

For u = 3 and v = 0:

x = 2(3) + 3(0) = 6

y = 3 - 0 = 3

The point (3, 0) is transformed to (6, 3).

For u = 0 and v = 2:

x = 2(0) + 3(2) = 6

y = 0 - 2 = -2

The point (0, 2) is transformed to (6, -2).

For u = 3 and v = 2:

x = 2(3) + 3(2) = 12

y = 3 - 2 = 1

The point (3, 2) is transformed to (12, 1).

Now, let's consider the range of transformed points for the x and y coordinates.

For the x-coordinate, we observe that the minimum value is 0 (from point 1) and the maximum value is 12 (from point 4). Therefore, the range of x is [0, 12].

For the y-coordinate, we observe that the minimum value is -2 (from point 3) and the maximum value is 3 (from point 2). Therefore, the range of y is [-2, 3].

Combining the ranges of x and y, we have the image of set S as:

{(x, y) | 0 ≤ x ≤ 12, -2 ≤ y ≤ 3}

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Answer:

$244.51

Step-by-step explanation:

Credit card payment =$5390

After paying $2300 from savings account,

Remaining payment left     = 5390-2300 = $3090

APR = 16.5% or 0.165

Time (t) = 14 months = 14/12 years

Using credit card payment calculator,

Monthly payment = $244.15

Hence, minimum monthly payment to be made to pay off the whole debt in 14 months = $244.15

The measure of the smaller angle is 23⁰ and the measure of the larger angle is 67⁰.

When the sum of two angles is equal to 90 degrees, they are called complementary angles.

So we can say that two angles are complementary if they sum up to 90 degrees.

From the given statement;

y = 3x - 2  -------(1)

y + x = 90  --------(2) (since they are complementary)

substitute for y in equation (2)

3x - 2 + x = 90

4x = 92

x = 92/4

x = 23 ⁰

y = 3(23) - 2

y = 67⁰

Thus, the measure of the smaller angle is 23⁰ and the measure of the larger angle is 67⁰.

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The correct answer is option c. 95%. Reaching out two standard errors on either side of the sample proportion gives us an interval of 95% confidence.

This is due to the fact that two standard errors on either side of the sample proportion will cover around 95% of the population's cases.

We can typically determine the true proportion in the population using this range of two standard errors on either side of the sample proportion.

This is because it helps us identify any potential outliers in the population and provides a range of population proportions for which we may be 95% certain.

We are 95% certain that the true percentage is capable inside the interval if we stretch out two standard errors on either side of the sample proportion.

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Answer:

28:20

Step-by-step explanation:

you just multiply 5 by 4 because 20 divided by 4 is 5 and then multiply 7 by 4

Answer:

Let total students be ‘X’

No of girls = (X-20)

Girls/Boys=7/5=(X-20)/20

7(20) =5(X-20)

140=5X-100

5X=240

X = 240/5

X =48

So, Total Students are 48

No of girls = (X-20) = 48-20 = 28

Step-by-step explanation:

Answer:

Step-by-step explanation:

We are given that T varies as the square root of the ratio of s and t, and we are trying to find the value of T when s=33 and t=18.

The relationship between T, s and t can be represented by the following equation:

T = k * √(s/t)

Where k is a constant.

We are given that when S=36, t=16, T=18. We can use this information to find the value of k.

We know that T = k * √(s/t)

and, T = 18 when s=36, t=16.

So we can substitute these values in the equation

18 = k * √(36/16)

Solving for k, we get:

k = 18/2 = 9

Now that we know the value of k, we can use it to find the value of T when s=33 and t=18.

T = k * √(s/t) = 9 * √(33/18) = 9 * √(11/6) = 9 * √(11/6)

The value of T when s=33, t=18 is 9 * √(11/6),

It is not possible to give the exact value of T because the value of the square root of (11/6) is not a whole number.

Let x be the number of teachers that go on the school trip

1 : 18 = x : 72

1/18 = x/72

cross-multiply

18x = 72

Divide both-side of the equation by 18

x = 4

Therefore, 4 teachers went on the school trip

It is False that based only on the r and p values listed above you can come to the conclusion that age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

In the given scenario, it is not completely true that based only on the r and p values listed above, you can come to the conclusion that age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

Let's first understand what is meant by the term "moderator.

"Moderator: A moderator variable is a variable that changes the strength of a connection between two variables. If there is a statistically significant bivariate relationship between the amount of texting during driving and the number of accidents, scientists investigate whether this bivariate relationship is moderated by age.

Therefore, based on the values of r and p, it is difficult to determine if age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

As we have to analyze other factors also to determine whether the age is a moderator or not, such as the sample size, the effect size, and other aspects to draw a meaningful conclusion.

So, it is False that based only on the r and p values listed above you can come to the conclusion that age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

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(A) x2 + (y – 3)² = 36, is the equation that represents circles with a diameter of 12 units and a center on the y-axis.

So, the standard form for calculating the equation of a circle is as follows:

(x-a)² + (y-b)² = b = r²

Where;

Information:

If the center is on the y-axis, it will be at (0, 3).

By substituting into the formula, we get (x-0)² + (y-3)² = 6² is equivalent to

Therefore, the equation that represents circles with a diameter of 12 units and a center on the y-axis is (A) (A) x2 + (y – 3)² = 36.

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The correct question is given below:
Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options.

a. x2 + (y – 3)2 = 36

b. x2 + (y – 5)2 = 6

c. (x – 4)² + y² = 36

d. (x + 6)² + y² = 144

e. x2 + (y + 8)2 = 36

Answer:

angle 2

Step-by-step explanation:

Corresponding angles are angles that are on the same side of the transversal and are congruent.

To visualize this kindly view the attatched image.

Based off of the attatched image, the angle corresponding to angle 1 whould be angle 2.

We are not given enough information to find the measure of this angle but we do know ∠1 ≅ ∠2