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3 years ago

HELP PICTURE IS SHOWN

Mathematics

1 answer:

Vedmedyk [2.9K]3 years ago

4 0

The answer is c) 45 times PI cubed.

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Can someone help me with this

ludmilkaskok [199]

Answer:

Step-by-step explanation:

1/2r +1/2= -2/7r -29/7 Subtracting 1/2 from both sides

1/2r +1/2 - 1/2= -2/7r -29/7- 1/2

1/2r = -2/7r - 29(2)-7/14

1/2r = -2/7r -65/14

3 0

3 years ago

Your boss tells you that she knows the length of the widgets your company makes is normally distributed with a mean of 25 inches

sp2606 [1]

Answer:

Mean of sampling distribution = 25 inches

Standard deviation of sampling distribution = 4 inches

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 25 inches

Standard Deviation, σ = 12 inches

Sample size, n = 9

We are given that the distribution of length of the widgets is a bell shaped distribution that is a normal distribution.

a) Mean of the sampling distribution

The best approximator for the mean of the sampling distribution is the population mean itself.

Thus, we can write:

$\bar{x} = \mu = 25\text{ inches}$

b) Standard deviation of the sampling distribution

$s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{12}{\sqrt{9}} = 4\text{ inches}$

8 0

3 years ago

Two-order systems may be solved by subtraction. True False

sammy [17]

This is True

answered false got it wrong

6 0

3 years ago

3 to the power of negative 4

Virty [35]

1/3^4=1/81
The answer is 1/81.

3 0

3 years ago

Read 2 more answers

Explain why the equation (x-4)2-28=8

Alex17521 [72]

Answer:

x=10 or x=-2

Step-by-step explanation:

add 28 to both sides

(x-4)^2=36

sqrt both sides

remember to get positive and negative roots

x-4=+/-6

add 4 to both sides

x=4+/-6

x=4+6 or x=4-6

8 0

3 years ago