Math Mcqs

What is the value of 2(x3 - y2) + 2(x3 + y2) for x = 2 and y = -4?

A) - 32
B) 32
C) 34
D) -34
E) 35
If x = 3, what is the value of 6 / x + 4x - 20?

A) 6
B) 2
C) - 6
D) 14
E) - 34
The surface area A of a cylindrical container is given by the formula

A = 2 pi r2 + 2 pi r h

where r is the radius, h is the height of the container and h its height and pi is a constant which can be approximeted by