Multiply and simplify. ? 

A.
B.
C.
D.


Answer: D

Mathematics

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Factor:

Mathematics

E ( X )

The probability density function of X is f (x) = 4/x5 over [1, x= ?). Compute the quantity.

Mathematics

?Find the speed v, in miles per hour, that will minimize costs on a 125-mile delivery trip. The cost per hour for fuel is  dollars, and the driver is paid  dollars per hour. (Assume there are no costs other than wages and fuel.) ?

A. ?75 mph B. ?125 mph C. ?200 mph D. 80? mph E. ?40 mph

Mathematics

Find the product.-7(16)

A. -112 B. -42 C. 70 D. 13

Mathematics