3 The formula to find the area of a rectangle is A = lw. If l = 6 in and w = 5 in, then what is the area of the blue portion of
the rectangle? A. 11 sq in B. 22 sq in C. 15 sq in D. 30 sq in
1 answer:
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Answer:
C
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
Here [ a, b ] = [ - 10, 10 ], thus
f(b) = f(10) = 10² + 9(10) + 18 = 100 + 90 + 18 = 208
f(a) = f(- 10) = (- 10)² + 9(- 10) + 18 = 100 - 90 + 18 = 28, thus
average rate of change = =
= 9