28. (02.05 MC) Which transformation was performed on PQRS to form P'Q'R'S? (1 point)
A dilation factor of 4
A dilation factor of 2
A dilation factor of 2
O A dilation factor of 4

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 =

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93