A sphere has a diameter of 12 ft. What is the volume of the sphere? Give the exact value in terms of pi

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.