The diagonal of a square has a length of 10 cm. find the length of a side of the square.
a. two times begin square root two end square root cm
b. 4 cm
c. five times begin square root two end square root cm
d. 8 cm

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6