Which r - value suggests a strong positive correlation?
A r = 0.1847
B r = −0.1847
C r = 0.9974
D r = −0.9974

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?