An arch is defined by y=10−x2y = 10 - x^2y=10−x2 for x∈[−10,10]x \in [-\sqrt{10}, \sqrt{10}]x∈[−10,10]. What is the area under the arch?
40103\frac{40\sqrt{10}}{3}34010
201020\sqrt{10}2010
20103\frac{20\sqrt{10}}{3}32010
101010\sqrt{10}1010