What is the expression in radical form? (5xy2z3)25 10x2y4z9−−−−−−−√5
55x5y10z15−−−−−−−−−√
25x2y4z6−−−−−−−√5
5x5y10z15−−−−−−−−√

#12 find the value of x. #13 find the value of the variable.

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =