What is the missing constant term in the perfect square that starts with x² + 6x?

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Evaluate cos2θ for cosθ = square root of 3/2

Is it greater than or less than7*3_9*2