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3 years ago

What is the exact circumference of the circle?

Mathematics

2 answers:

erma4kov [3.2K]3 years ago

8 0

48 im 12 and i know this beatifle

nalin [4]3 years ago

8 0

Answer:

A. 48 \pi

Step-by-step explanation:

There cannot be a double pi or more in a simple circle circumference problem.

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Hoping to attract more shoppers, a city builds a new public parking garage downtown. The city plans to pay for the structure thr

posledela

Answer:

$MOE_{95} = 1.192\cdot MOE_{90}$

Step-by-step explanation:

The margin of error is computed using the formula:

$MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}$

The critical of <em>z</em> for 95% confidence level and 90% confidence level are:

$z_{0.05/2}=z_{0.025}=1.96\\\\z_{0.10/2}=z_{0.05}=1.645$

*Use a <em>z</em>-table.

The sample size is n = 44.

Compare the MOE for 95% confidence level and 90% confidence level as follows:

$\frac{MOE_{95}}{MOE_{90}}=\frac{1.96\times (15/\sqrt{44})}{1.645\times (15/\sqrt{44})}$

$\frac{MOE_{95}}{MOE_{90}}=\frac{1.96}{1.645}\\\\\frac{MOE_{95}}{MOE_{90}}=1.192\\\\MOE_{95} = 1.192\cdot MOE_{90}$

6 0

3 years ago

What is the unit length of a'b'

ladessa [460]

5
is thr correct answer

8 0

2 years ago

Each floor in a hotel has the same number of rooms. A member of the housekeeping staff cleaning every room on 5 floors cleaned 5

ch4aika [34]

There are 10 rooms per floor if there are 30 floors then there are 300 rooms

8 0

3 years ago

Find the value of 21.41 + 12.0 . (show the work)

Grace [21]

Answer:33.41

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

6. Suppose that y varies inversely with x. Write an equation for the inverse variation,

Nostrana [21]

Answer:

If y varies inversely as x, then we write it as:

y = k/x

where k is some constant.

If we multiply both sides of this equation by x we get an equation for k:

k = x*y

We are given that y=4 when x=7, therefore:

k = 7*4 = 28

Put this back into our original equation to get:

y = 28/x

6 0

3 years ago