What is the volume of the trapezoidal right prism 20 m 2 m 8 m
a. 98 m3
b.196 m3
c. 70 m3
d.392 m3

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)