Complete the following proofs. Given: Points R, S, T, Q on circle O

Prove: m Arc RS + m Arc ST + m Arc TQ = m Arc RQ

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

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.