Given that cos a = 1/3 find cos 2a

Complete the statements about circle j

Determine the volume of the solid that lies between planes perpendicular to the x-axis at x=0 and x=4. The cross sections perpendicular to the x-axis on the interval 0≤x≤4 are squares whose diagonals run from the curve y=x√ to the curve y=-x√.

Find the volume of 5.4 inches 2 inches 7.1 inches round to the nearest 10th is necessary

The commutative property does not work which operations

What is the value of x^0

Antonio needs 8 feet of ribbon to complete a project. He can purchase a 180-inch (15-foot) packaged length for $3.99, or he can buy the ribbon by the foot for $0.39/ft. Which is the better deal for Antonio?

Edward walked 3/4mile from his home to the park. Then he walked 2/4 mile from the park to the library. which distance is shorter?

Two clocks are turned on at the same time. One clock chimes every 15 minutes. The other clock chimes every 25 minutes. In how many minutes will they chime together?

Applying Math 8. Solve the equation to show how I = v/r becomes R = v/l Show your work

Which graph represents the compound inequality? n=4