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Novosadov [1.4K]
3 years ago
11

19.53 38.47|63.5 | 94

Mathematics
1 answer:
tresset_1 [31]3 years ago
4 0

Answer:

95.85

Step-by-step explanation:

The area A of a circle as a function of its radius r is given by πr².

So, A(r) = πr²

Now, if there is a function f(x) and we have to calculate the average rate of change between the interval x = a and x = b is given by

\frac{f(b) - f(a)}{b - a}

Now, A(5.5) = π(5.5)² = 95.07 and A(25) = π(25)² = 1964.28

So, the average rate of change in area between the intervals r = 5.5 to r = 25 will be given by

\frac{A(25) - A(5.5)}{25 - 5.5} = \frac{1964.28 - 95.07}{25 - 5.5} = 95.85 (Answer)

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