The mass of an electron is approximately 9.11×10−31 kilograms, and the mass of a proton is approximately 1.67×10−27 kilograms. Approximately how many times larger is the mass of a proton than the mass of an electron?

a. about 500 times larger
b. about 2,000 times larger
c. about 10,000 times larger
d. about 9 times larger

Uestion 1(multiple choice worth 5 points) (05.02)alex wants to paint one side of his skateboard ramp with glow-in-the-dark paint, but he needs to know how much area he is painting. calculate the area of the isosceles trapezoid. isosceles trapezoid with top base 12 feet, bottom base of 18 feet, and height of 6 feet. 72 ft2 84 ft2 90 ft2 108 ft2