On a piece of paper, use a protractor to construct right triangle abc with ab = 4 in. m ∠a = 90 °, and m ∠b=45 ° what statement is true about the triangle? a) bc = 8 in. b) bc = 4 in. c) ac = 4 in. d) ac = 2 in.

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