Mathematics

Problem

## End of Chapter 9 Drill The answers are in Chapter 24. 1. A rectangle has its base on the

x

-axis and its two upper corners on the semicircle

y=\sqrt{200-x^{2}}

. Find the value of

x

that maximizes the area of the rectangle. (A) 0 (B) 5 (C) 10 (D)

\sqrt{200}

(A) 0 (B) 5 (C) 10 (D)

\sqrt{200}