Which graph shows a dilation?
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Answer:

The statements that are true about a hypothesis test for two proportions are:

I. It estimates the common value of p1 and p2 under the assumption of equal proportions.

II. It is obtained by averaging the two sample proportions 1 and 2.

Step-by-step explanation:

We use the two sample proportion z-test to determine whether the proportions of the two groups differ. This test calculates the range of values that is likely to include the differences between the sample proportions of p1 and p2.

Answer:

b

Step-by-step explanation:

Answer:

91.08%

Step-by-step explanation:

Confidence interval = (1.6, 8.4)

Sample size (n) = 30

Standard Error (E) = 2

Mean (m) = 5

The confidence interval is obtained using the relation :

Mean ± Zcritical * standard error

5 ± Zcritical * 2

5 - (Zcritical * 2) = 1.6

5 - 2Zcritical = 1.6

5 - 1.6 = 2Zcritical

3.4 = 2Zcritical

Zcritical = 3.4 / 2

Zcritical = 1.7

From Z probability calculator

P(Z < 1.7) = 0.044565

α = 1 - (0.044565 * 2) = 0.91087

0.91087 * 100% = 91.08% = 91%

Hence, confidence level = 91.08%

Answer:

the sale price is 42

Step-by-step explanation:

120-65% = 42

Answer:

no

Step-by-step explanation:

here, f (x)=x^3 - 4x^2 + 3x + 7

when, factor is (x + 5)

x - a =x + 5

a = -5

Reminder= f (a)

= (-5)^3 - 4 (-5)^2 + 3×(-5) + 7

= -233

Since Reminder = -233 which is not 0 .

(x + 5) is not a factor of f (x)=x3-4x2+3x+7

Answer:

3.6477seconds

Step-by-step explanation:

Sarah the cheetah ran the 100 meters in 5.9523s. Subtract 5.9523 from 9.6

Answer:

B. Function F is odd

Step-by-step explanation:

If a function is odd, then -f(x) = f(-x), for all values of x.

For such function an origin symmetry is obtained just like the image uploaded.

Also, for such function, there is an equal distance between f(x) and f(-x), just like the image uploaded (d₁ = d₂).

Thus, the correct option is "B"

Answer:

1/6

Step-by-step explanation:

2 is 1/6th of 12

5 is 1/6th of 30

Answer:

C.) 6

Step-by-step explanation:

I multiplied the number 2 by X and my sum was Y.

Answer:

D

Step-by-step explanation:

Answer:

Concept: Arithmetic Sequence & Series

The solution is, the correct formula for the following Arithmetic Sequence:  -4, -1, 2, 5, 8,…, is, an = -4 + 3(n – 1), the value of the n-th term.

We know that,

from Arithmetic Sequence & Series we get,

The nth term of AP : a_n = a + (n – 1) × d

where, a = first term

d = common difference,

Notice the change is +3 for the first iteration and then +3 for the second iteration and so on

i.e. here,

a = -4

d = +3

Hence it must work for any nth variable.

So we have -4+3(n-1)

Hence, we get, an = -4 + 3(n – 1).

To lean more on Arithmetic progression click:

brainly.com/question/28898589

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Answer:

[tex]8 - x[/tex]

Step-by-step explanation:

additive inverse means multiplying by -1

therefore :

[tex] - 1 \times (x - 8) \\ = - x + 8 \\ = 8 - x[/tex]

Answer:

c) is the correct answer

Step-by-step explanation:

Answer:

1 3/16

Step-by-step explanation:

Answer:

1.1875 or 1 3/16

Step-by-step explanation:

you just put it into a calculator

Answer:

Step-by-step explanation:

(-8x + 2) + (-5x + 7)

-8x + 2 - 5x + 7

- 13x + 9

Answer:

Option A. 0.6 is the right answer.

Step-by-step explanation:

Given information is:

Mean = $240

SD = $60

The probability of Dan making less than $255 has to be found.

Let x = 255

First of all, we will find the z-score of the given value

[tex]z = \frac{x-mean}{SD}\\z = \frac{255-240}{60}\\z = \frac{15}{60}\\z = 0.25[/tex]

Now the z-score table will be used to see the probability of less than 0.25

Using the z-score table, we get:

P(x<0.25) = 0.5987

As the answer choices are rounded off to one decimal place, we will round off our answer to one digit after the decimal point

0.5987 => 0.6

Hence,

Option A. 0.6 is the right answer.

Answer:

Step-by-step explanation:

Volume formula:

Solving for l:

Length of the given cylinder:

8.2 in is the correct answer to the question

6

The formula for the volume of a cylinder is as follows, where V is the volume of the cylinder, r is the radius of the base, and l is the length of the cylinder.

V=\pi r^2lV=πr

2

Answer:

The system of equations is given as:

x ≥ $500

y ≥ $800

x + y ≤ 1600

20x + 30y ≥ 2800

Step-by-step explanation:

From the question

We are told that

x = Number of $20 seats

y = Number of $30 seats

$20 seats = At least $500 (greater than or equal to)

$30 seats = At least $800 (greater than or equal to)

You are designing a social hall that would seat no more than 1600 people

No more than means less than or equal to ≤ 1600 people

x + y ≤ 1600 people

Total revenue generated = At least $2800. This means ≥ (greater than or equal to).

20x + 30y ≥ $2800

The system of equations is given as:

x ≥ $500

y ≥ $800

x + y ≤ 1600

20x + 30y ≥ 2800

Option C is the correct Option.

Answer:

128

Step-by-step explanation:

Sam has X stamps.

Jill has (576-X) Stamps.

X-x/7 = 6x/7 = Sam's bal.

576-x + x/7 = 576 - 6x/7 = Jill's bal.

1/4(576-6x/7) = 144 - 6x/28

3/4(576-6x/7) = 432 - 9x/14 = Jill's new

bal.

6x/7 + 144-6x/28 = 144 + 24x/28-6x/28 =

144 + 9x/14 = Sam's new bal.

Jill's new bal = Sam's new bal

432 - 9x/14 = 144 + 9x/14

18x/14 = 144-432 = 288

18x = 4032

X = 224

576-X = 576-224 = 352.

Difference = 352 - 224= 128

Answer:

Mutual funds differ from CDs in a multitude of ways. Mutual funds are diversified portfolios of stocks and bonds managed by a financial advisor or broker. They typically offer substantially higher returns than CDs, and while they are riskier than CDs, they are not considered high risk investments.

Answer:

I just answed this question today!Your asnwer is 144.

Step-by-step explanation:

1:5:3

48 total.

Divide 48 and get 16

Multiply 16 x1

Multiply 16 x5

Multiply 16x 3

16:80:48

Answer:

Step-by-step explanation:

using supplementary angles we can fine that two angles of a straight line =180

128+?=180 ?=180-128=52

126+?=180 ?=180-126=54

all angles of a triangle add up to 180 degrees

180=52+54+?

94=?

180-94=x

106=x

Answer:

Let's solve for a.

2(3x+4)=ax+b

Step 1: Flip the equation.

ax+b=6x+8

Step 2: Add -b to both sides.

ax+b+−b=6x+8+−b

ax=−b+6x+8

Step 3: Divide both sides by x.

ax

x

=

−b+6x+8

x

a=

−b+6x+8

x

Step-by-step explanation:

Answer:

Hi

it will be 13

Answer: A

Step-by-step explanation:

Staar testtt

Answer:

when # cats exceeds 2,313

Step-by-step explanation:

if you graph y = .013x + 2100 and y = .08 + 1000 you will see the lines intersect when the town population is 16,418 and the number of cats equals 2,313.