3 years ago

I think I have part A but I'm stuck on B and C

Mathematics

1 answer:

Westkost [7]3 years ago

4 0

Answer:

I don't know the answer but search iron gogle

Step-by-step explanation:

thanks bye

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The hourly wages that a large company pays its employees are Normally distributed with a mean of $8.50 and a standard deviation

lyudmila [28]

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2.5% and 97.5%

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8 0

2 years ago

With explanation please, step by step if is necessary, I need heeelp!

Radda [10]

Answer:

$area \: of \: the \: circle \: = \: \pi {r}^{2} \\ so \\ \: 10 = \pi {r}^{2} \\ {r}^{2} = \frac{10}{\pi} \\ r = \sqrt{ \frac{10}{\pi} } \\ r = \frac{ \sqrt{10} }{ \sqrt{\pi} } \\ r = \frac{ \sqrt{10} \times \sqrt{\pi} }{ \sqrt{\pi} \times \sqrt{\pi} } \\ r = \frac{ \sqrt{10\pi} }{\pi} \\ since \: d \: = 2r \\ so \\ d = 2( \frac{ \sqrt{10\pi} }{\pi} ) \\ \\ d = \frac{2 \sqrt{10\pi} }{\pi} \\ since \: circumferenc \: = 2r\pi \\ so \: circumference = 2( \frac{ \sqrt{10\pi} }{\pi} )\pi \\ = 2( \sqrt{10\pi} ) \\ = 2 \sqrt{10\pi}$