PLEASE HELP!! 15 POINTZ ..What are the ordered pairs of the solution for the system of equations? f (x)= x squared- 2x +3; f (x)= -2x+12

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4