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3 years ago

Please please please please help

Mathematics

2 answers:

Solnce55 [7]3 years ago

8 0

Answer:

31.40

Step-by-step explanation:

3.14 x 10

= 31.40

I'm very sorry if you get it wrong tell me

vivado [14]3 years ago

3 0

Answer:

arc = 5π units

Step-by-step explanation:

The circumference (C) of a circle is calculated as

C = 2πr ( r is the radius )

Here we have a semicircle with d = 10, so r = 5, then

arc = $\frac{1}{2}$ × 2π × 5 = 5π units

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Dominik [7]

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2 years ago

Which problem solving strategy would be best to solve this problem?

g100num [7]

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3 years ago

What is the first step in solving for z in the equation 5z - 4 = 26

Andrei [34K]

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3 years ago

In an effort to estimate the mean of amount spent per customer for dinner at a major Lawrence restaurant, data were collected fo

larisa86 [58]

Answer:

The 99% confidence interval for the population mean is 22.96 to 26.64

Step-by-step explanation:

Consider the provided information,

A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,

The confidence interval if 99%.

Thus, 1-α=0.99

α=0.01

Now we need to determine $z_{\frac{\alpha}{2}}=z_{0.005}$

Now by using z score table we find that $z_{\frac{\alpha}{2}}=2.58$

The boundaries of the confidence interval are:

$\mu-z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80-2.58\times \frac{5}{\sqrt{49}}=22.96\\\mu+z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80+2.58\times \frac{5}{\sqrt{49}}=26.64$

Hence, the 99% confidence interval for the population mean is 22.96 to 26.64

3 0

3 years ago

50 didved by what will get 5,000

DENIUS [597]

Answer:

0.01

Step-by-step explanation:

Your equation is 50 / x = 5,000

You are able to switch this around to 50 / 5,000 = x

Because you know that a x b = c is the same as b x a = c

When you divide 50 by 5,000, you get 0.01

So, 50 divided by 0.01 will get 5,000

4 0

3 years ago

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