D(t)=-21cos(2pi/29.5t)+384

Suppose that △ opq is isosceles with base qp . suppose also that m ∠ o = (5x + 43) ° and m ∠ q = (3x + 30) ° . find the degree measure of each angle in the triangle.

Use the distributive law to multiply. 3(4x + 5y + 6)

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality