In the picture Up top, figure ABCDE has been dilated from a center point O. If |OA| is 5 and |OA'| = 10, what is the scale factor?

(A.) 1/2

(B.) 2

(C.) 5

(D.) 1/5

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

Solve for x and select the correct answer