Determine if 9x2 - 42x + 49 can be the area of a square. if so, what would the value of x have to be if the area of the square is 64 square meters?

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