What’s the answer? Please help me!

Answer:

25[tex]\pi[/tex]

Step-by-step explanation:

[tex]\pi[/tex][tex]r^{2}[/tex]=area of circle

[tex]\frac{1}{4}[/tex][tex]\pi[/tex][tex]r^{2}[/tex]=1/4 of the area of a circle

now solve

[tex]\frac{1}{4}[/tex][tex]\pi[/tex][tex]10^{2}[/tex]

[tex]\frac{1}{4}[/tex][tex]\pi[/tex]100

25[tex]\pi[/tex]

Answer:

70°

Step-by-step explanation:

If arc BY is 40, angle BAY is 20.

BAC is 90.

90-20 is 70.

m<YAC=70

Answer:

Is there supposed to be a picture?

Answer:

3,528.57142857

Step-by-step explanation:

Answer:

[tex]3528\frac{4}{7}[/tex]

Step-by-step explanation:

13 × 95 ÷ 0.35

1235 ÷ 0.35

[tex]3528\frac{4}{7}[/tex]

Answer:

a)The P-value will be too small

b) He will reject the Null hypothesis

Step-by-step explanation:

a) If David incorrectly uses the z-distribution instead of the t-distribution, he will obtain a p-value that is too small   because p-values obtained using Z distribution are smaller when compared to p-values obtained using t-distribution

b) He will reject the Null hypothesis given that the P value he will obtain will be very different from the one he obtained using z-distribution

Answer:

x = 6

Step-by-step explanation:

Vertical angles in a geometry are equal. Hence m<A = m<B

Given that

m<A =  3x - 9

m<B - x+3

Then 3x - 9 = x+3

3x - x = 3 + 9

2x = 12

Divide both sides by 2

2x/12 = 12/2

x = 6

Hence the value of x is 6

Answer:

[tex]\frac{28}{3}=t[/tex]

Step-by-step explanation:

[tex]\frac{4}{3}=\frac{t}{7}[/tex]

Use cross products to simplify the equation. Multiply the denominator of the second fraction by the numerator of the first fraction, and the denominator of the first fraction by the numerator of the second,

[tex](4)(7) = (3)(t)[/tex]

Simplify,

[tex]28=3t[/tex]

Inverse operations,

[tex]\frac{28}{3}=t[/tex]

Answer:

The answer is 5.9

Step-by-step explanation:

1) Subtract 31.7 from both sides.

[tex]14 - 31.7 = - 3x[/tex]

2) Simplify 14 - 31.7 to -17.7

[tex] - 17.7 = - 3x[/tex]

3) Divide both sides by -3.

[tex] \frac{ - 17.7}{ - 3} = x[/tex]

4) Simplify -17.7/-3 to 5.9

[tex]5.9 = x[/tex]

5) Switch sides.

[tex]x = 5.9[/tex]

Therefor, the answer is x = 5.9.

Answer:

(a) MAE = 5.20

(b) MSE = 10

(c) MAPE = 38.60%

(d) Forecast for week 7 = 14

Step-by-step explanation:

Note: See the attached excel for the calculations of the Error, Error^2, and Error %.

(a) mean absolute error

MAE = Total of absolute value of error / Number of observations considered = |Error| / 5 = 26 / 5 = 5.20

(b) mean squared error

MSE = Total of Error^2 / Number of observations considered = Error^2 / 5 = 150 / 5 = 10

(c) mean absolute percentage error (Round your answer to two decimal places.)

MAPE = Total of Error % / Number of observations considered = Error % / 5 = 193.02 / 5 = 38.60%

(d) What is the forecast for week 7?

Since the forecast is based on the naive method (most recent value), the forecast for week 7 is value for week 6. Therefore, we have:

Forecast for week 7 = 14

Answer:

6

Step-by-step explanation:

plz me

Answer:

6

Step-by-step explanation:

can i have brainliesyt

9514 1404 393

Answer:

  sin(X) = (√119)/12

  cos(X) = 5/12

Step-by-step explanation:

The mnemonic SOH CAH TOA can help you remember the relevant ratios.

  Sin = Opposite/Hypotenuse

  sin(X) = YZ/YX

  sin(X) = (√119)/12

__

  Cos = Adjacent/Hypotenuse

  cos(X) = XZ/XY

  cos(X) = 5/12

Answer:

Pvalue of 0.0446 < 0.05, which means that we reject the null hypothesis and accept the alternative hypothesis, that the true mean is larger than the specification.

Step-by-step explanation:

The average weight of a package of rolled oats is supposed to be at most 18 ounces.

This means that the null hypothesis is:

[tex]H_{0}: \mu \leq 18[/tex]

Is the true mean larger than the specification?

Due to the question asked, the alternate hypothesis is:

[tex]H_{a}: \mu > 18[/tex]

The test statistic is:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.

18 is tested at the null hypothesis:

This means that [tex]\mu = 18[/tex]

A sample of 18 packages shows a mean of 18.20 ounces with a sample standard deviation of 0.50 ounces.

This means that [tex]n = 18, X = 18.2, \sigma = 0.5[/tex]

Value of the test statistic:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{18.2 - 18}{\frac{0.5}{\sqrt{18}}}[/tex]

[tex]z = 1.7[/tex]

Pvalue of the test:

Probability of finding a sample mean above 18.2, which is 1 subtracted by the pvalue of z = 1.7.

Looking at the z-table, z = 1.7 has a pvalue of 0.9554.

1 - 0.9554 = 0.0446

0.0446 < 0.05, which means that we reject the null hypothesis and accept the alternative hypothesis, that the true mean is larger than the specification.

Answer:

w=12 L=27

Step-by-step explanation:

length is twice the width with additional 3 inches

12×2=24+3=27

12×27=324

Answer:

72

Step-by-step explanation:

90/100 x 80 = 72 employees

Answer:

60+160

Step-by-step e

Answer:

60+160 or 220

Step-by-step explanation:

20(3+8)

multiple 20 by 3 and 8

60+160

add 60 and 160 which is 220

Answer:

6

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

42 is the biggest and the smallest is 22 so 42-22 = 20!

Answer:

(-6,-3)

Step-by-step explanation:

solve using substitution or elimination

Answer:

Yes , this is the function

Step-by-step explanation:

Because every domain has their only one image

Answer:

D (6, 21)

Step-by-step explanation:

Since the ratio of the corresponding values of x and y given in the table is 2 : 7

So, 6/ 21 = 2/7 = 2: 7

Thus, D (6, 21) is the correct answer.

Answer:

(-8, -15) and (-8, 3)

Step-by-step explanation:

got it right on test

option 3 on edge21

Answer:

c on edge

Step-by-step explanation:

Answer:

a-70

Step-by-step explanation:

28+42=70

Hi!

7|H| + 4G = 7 * |-6| + 4 * 7 =

= 7 * 6 + 4 * 7 = 42 + 28 = 70

Grettings!

Answer:

Step-by-step explanation:

What is the radius of a circle whose diameter is 13 units? This means that the diameter is double the length of the radius. To find the radius, do: ∴, the radius is 13 2 units or 7.5 units.

Answer:

6.5dm

Step-by-step explanation:

Diameter is twice radius

radius =13÷2

radius =6.5dm

Answer:

48°

Step-by-step explanation:

All the angles in a triangle sum up to 180°.

Therefore,

x°+74°+58°=180°

→x°+132=180°

x°=180-132=48°

Answer:

Whats the question to this problem? Do you want to know if it's correct?

i can help! Just show your work? 1/2 times whatever X is + X+1 over whatever X is = 1/2 i can get the answer if you need it unless what i said helped! :) Your welcome!

Step-by-step explanation:

Have a great week! Hope i helped! Plz dont delete answer i promise i will help and it will be correct!

Answer:

A^2 + B^2 = C^2

6^2 + 14^2=c^2

36+196=C^2

232=c^2

square root of 232= c

therefore c is equal to 15,23

Step-by-step explanation:

use the Thereom of Pythagoras

Answer:

x+y =-6 you can write this equation

Answer:

Negative Association.

Step-by-step explanation:

Association between variables:

Association between variables can be classified as positive or negative.

Positive: Both move in the same direction, that is, either both increase or both decrease.

Negative: The variables move in opposite directions, one increases and the other decreases.

In this question:

As the first increases the second decreases, that is, they move in opposite directions, so it is a Negative Association.