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kirill115 [55]
3 years ago
11

The surface area, S, of a sphere of radius r feet is S = S(r) = 4πr^2. Find the instantaneous rate of change of the surface area

with respect to the radius r at r = 8.
Mathematics
1 answer:
vesna_86 [32]3 years ago
4 0
This is the derivative of S with respect to r, evaluated at r=8.
dS/dr = 8πr
Substituting r=8 into the above gives the answer of 64π.
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Answer:

difference in the proportion = 0.0452

Step-by-step explanation:

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p1 = 0.1399

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a) The best estimate for the difference in the proportion of smokers, using male proportion minus female proportion is 0.0452. Male smokes more than females in given sample.

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p1 - p2 = 0.0452

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3 years ago
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den301095 [7]

Answer:

x = 181 and y = 97

Step-by-step explanation:

let called the first number is x

the second number would be called y

We are given that:

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Let change x in (2) into (1):

y + 84 + y = 278

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Divide both side by 2, we got:

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Because y = 97 and x + y = 278 so x would equal:

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Subtract 97 from both side, we got:

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Hope this helped :3

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Answer:

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