Select all of the equations that can be solved by taking a square root. (x – 10)2 = 9
3x2 - 2 + 12 = 0
02(x + 1)² + 5 = 37
6.42 – 14 = 10
x2 + 8x = -15
22 + 28 = 64

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2