Differentiate.f(x) = (5x3 + 6)(5x7 - 4)
A. 250x9 + 210x6 - 60x
B. 250x9 + 210x6 - 60x2
C. 20x9 + 210x6 - 60x
D. 20x9 + 210x6 - 60x2
Answer: B
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A. k3 + 4k2 - 5k miles/hr B. k2 - 4k + 5 miles/hr C. k2 + 4k - 5 miles/hr D. k2 + 9k - 5 miles/hr
Find the slope of the polar curve at the indicated point.r = 4 csc ?, ? = 
A. 0 B. -1 C. 1 D. Undefined
Solve the problems.On a map of the Fox River, 1 centimeter represents 6 kilometers. If a trail by the river is actually 20.40 kilometers long, what is the length of the river on the map? Round to nearest tenth.
A. 5.4 centimeters B. 9.4 centimeters C. 3.4 centimeters D. 14.4 centimeters
Answer yes or no.Is 2 a solution to the equation x + 3 = 5?
A. Yes B. No