The width of a rectangle is 7 inches shorter than its length. The area is 78 square inches. What are the dimensions of the recta
1 answer:
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Answer:
Option D,
Step-by-step explanation:
<u>Step 1: Determine the rate of change or slope</u>
Answer: Option D,
x = 2
<em>right</em><em> </em><em>option</em><em> </em><em>is</em><em> </em>(E).
Step-by-step explanation:
f(x) = x³ - 3x² + 12 in interval [-2, 4]
{taking f'(x) by doing derivative of f(x)}
f'(x) = 3x² - 6x
.•. f'(x) = 0
0 = 3x² - 6x
0 = 3x(x - 2)
0 = x - 2
x = 2