9. Suppose that $7,000 is invested in a savings account paying 2 % interest per year. How long will it take for the amount in the account to grow to $28,000 if interest is compounded monthly (Writting
down the setup only)?

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?

Rationalize the denominator- 12x/√x-10

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)