What is the answer to 9(1-r)+3r?

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Evaluate cos2θ for cosθ = square root of 3/2

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)