the sum age of tracy and her mother is 60 uf tracys present age is in y years, write a linear expression for her mothers age after 5 years

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.

What is the missing justification in the proof of the pythagorean identity below, sin^2x+cos^2x=1, using a right triangle?