Evaluate -(3^-1)(3^-2).

A.-27
B. 27
C.-1/27
D. 7

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis