Use the graph of y = f(x) to solve this exercise.

Evaluate cos2θ for cosθ = square root of 3/2

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4