find the length of CQ and BC.

1. You just won 4 tickets to a concert, but you have 8 friends who would like to go with you. How many different ways can you give out the extra 3 tickets to your friends? 2. The booster club has 10 people running for the offices of president, vice-president, secretary and treasurer. How many ways can the offices be filled?

A pool party is occurring at the Robertson's house this next holiday. They want to invite 64  friends and family. Only 26  friends and 9  family members reply to the invite. The Robertson's are a family of 5 . Their pool is 35  feet long and is 10  feet deep when filled to capacity. They are worried children under 5  will struggle in the pool, so they only fill the pool to 5  feet. The day of the party, 53  people show up. The son, Billy, is 4.5  feet tall. If Billy's height is half the width of the pool, what is the volume of water (in cubic feet) the Robertson's filled the pool with?

Use spherical coordinates to find the mo- ment of inertia of the solid homogeneous hemisphere of radius 1 and density 3 about a diameter of its base. 1. I = 47