2 years ago

Find the circumference and area of a circle with diameter 22 ft. Express your answer in terms of π.

Mathematics

1 answer:

Ray Of Light [21]2 years ago

4 0

Answer:

69.12ft

Step-by-step explanation:

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What is the sum of 1/9, 2/3,and 5/18? A.19/18 B.8/30 C.4/15 D.12/9

amm1812

1/9 times 2/2=2/18
2/3 times 6/6=12/18

2/18+12/18+5/18=(2+12+5)/18=19/18=1 and 1/8

A is answer

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3 years ago

8(7 + 23) = 8(7) + 8(?)

34kurt

Answer: 23

When using multiplication with brackets, you multiply the number by all the numbers within the bracket before adding them together.

Therefore when it is 8(7 + 23) it basically means: 8(7) + 8(23)

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3 years ago

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What is 1/3 of 1/9 of a ton?<br><br> Make sure your answer is fully reduced

natulia [17]

Answer:

0.03703703703

Step-by-step explanation:

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2 years ago

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jek_recluse [69]

I am eng k ...................

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2 years ago

The batteries from a certain manufacturer have a mean lifetime of 850 hours, with a standard deviation of 70 hours, assuming tha

matrenka [14]

To answer (a), we will need to find the Z value for 710 hours and 990 hours.

$\begin{gathered} For\text{ 710} \\ Z\text{ = }\frac{x-\mu}{\sigma} \\ \text{ = }\frac{710-850}{70} \\ \text{ = -2} \\ p\text{ =0.0228 } \\ For\text{ 990:} \\ Z\text{ = }\frac{990-850}{70} \\ \text{ =2} \\ p\text{ = 0.9772} \end{gathered}$ $\begin{gathered} To\text{ find P \lparen–2 \le Z \le 2\rparen} \\ =\text{ 0.9772 -0.0228} \\ =\text{ 0.9544} \\ =95.44\% \end{gathered}$

B) 68% of data lies between one standard deviation of the mean.

850 +70 = 920

850 - 70 = 780

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1 year ago