If y=2cos (x/2) then d^2y/dx^2 =

What is the total surface area of a cube with side length 4?

A snail travels 3 feet in one hour. In each subsequent hour, the snail travels three-fourths the distance it traveled in the previous hour. How far does the snail travel in 6 hours

How to solve v+2>-19

A blueprint for a house states that a 6 inch line represent 11 2/3 feet on the actual home. If the house is to be a total height of 20 feet, how many inches high would it be on the blueprint.

Write 144 an exponent by using 12 as the base

If a taxi goes 45 miles per hour and drives a distance of 164 miles and charges $20 for every hour driven, how much would the taxi cost?

For the given term, find the binomial raised to the power, whose expansion it came from: 10a ^ 3 * b ^ 2.

What do the inner planets and outer planets have in common

The diameter of a tube is 1 3/4. How much is radius (half the diameter) ?

What is the square root of twenty five