a ball is thrown downward from the top of a 120-foot building with an initial velocity of 16 feet per second. the height of the ball h in feet after t seconds is given by the equation h= -16t squared - 16t + 120. how long after the ball is thrown will it strike the ground? the time is takes for the ball to strike the ground is about __ seconds

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.

What can you determine about the solutions of this system