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2 years ago

The circumstance of a circle is 16 ft The radius is_____ ft

Mathematics

1 answer:

kari74 [83]2 years ago

5 0

Answer:

8ft

Step-by-step explanation:

Circumference of a circle equation; πd or2πr

16π = 2πr you can then divide both sides by π

16 = 2r then you can divide both sides by 2

8 = r

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Jenna has $500 in her account and withdraws $50 every Sunday to pay for her account after n lessons,

Lostsunrise [7]

Answer:

What do you want for the answer?

This?

500-50n

Step-by-step explanation:

7 0

2 years ago

Suppose heights of seasonal pine saplings are normally distributed and have a known population standard deviation of 17 millimet

Mumz [18]

Answer:

$296.693\leq x\leq 319.307$

Step-by-step explanation:

The confidence interval for the population mean x can be calculated as:

$x'-z_{\alpha /2}\frac{s}{\sqrt{n} } \leq x\leq x'+z_{\alpha /2}\frac{s}{\sqrt{n} }$

Where x' is the sample mean, s is the population standard deviation, n is the sample size and $z_{\alpha /2}$ is the z-score that let a proportion of $\alpha /2$ on the right tail.

$\alpha$ is calculated as: 100%-99%=1%

So, $z_{\alpha/2}=z_{0.005}=2.576$

Finally, replacing the values of x' by 308, s by 17, n by 15 and $z_{\alpha /2}$ by 2.576, we get that the confidence interval is:

$308-2.576\frac{17}{\sqrt{15} } \leq x\leq 308+2.576\frac{17}{\sqrt{15} }\\308-11.307 \leq x\leq 308+11.307\\296.693\leq x\leq 319.307$

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3 years ago

5,30,180,1080 what is the common difference

KIM [24]

The given sequence is not arithmetic so, it doesn't has common difference.

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2 years ago

Use the diagram to find the domain and range of f.<br> The domain is {___}

adelina 88 [10]

Answer:

can i see a pic

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Write 12.4% as a decimal and simplified fraction

Gnom [1K]

Given the following question:

We are given 12.4%

$undefined$

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7 months ago