At a fourth of july celebration, a rocket is launched straight up
with an initial velocity of 125 feet per second. the height h of the rocket in feet
above sea level is modeled by the formula h = 125t - 16t”, where t is the time in
seconds after the rocket is launched.
a. what is the height of the rocket when it returns to the ground?
b. let h = 0 in the equation and solve for t.
c. how many seconds will it take for the rocket to return to the ground?

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer