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Novosadov [1.4K]
3 years ago
14

What is the formula for the area of a circle, a=πsup(r,2) as function?

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Area (a) as a function of radius (r) might be written

a(r) = πr²

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The Neolithic Revolution
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The Neolithic Revolution allowed people to live in permanent settlements.

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6 0
3 years ago
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-2.5(x-4)=-3+4 <br> What is the solution to the equation
gavmur [86]

thank me the answer is x=3.6

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2 years ago
An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est
MrRa [10]

Answer:

<em> 85% level of the confidence interval is</em>

<em>(26.337, 26.662)</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

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Mean of the sample x⁻ = 26.5

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85% level of the confidence interval is determined by

(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })

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<em> 85% level of the confidence interval is determined by</em>

(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })

(26.9 -1.036 \frac{2.7}{\sqrt{295} } , 26.5 + 1.036 \frac{2.7}{\sqrt{295} })

( 26.5 - 0.1628 , 26.5+0.1628)

(26.3372,26.6628)

7 0
3 years ago
I don't understand ÷ fractions
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Ok. so, you have a fraction. lets say it is, 5/20. and the other, is. 2/5. flip the first one, and multiply. so your answer would be, 25/40. hope this helps.
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3 years ago
Grant has 2 over 3 cup of ice cream in a bowl. He then removes two 1 over 6 cups of ice cream to share with his little brother.
Nonamiya [84]
I hope this helps you



2^3-2.1^6


8-2


6
6 0
2 years ago
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