Jimmy threw a baseball in the air from the roof of his house. The path followed by the baseball can be modeled by the function f(t) = -8t^2 + 48t + 40, where t represents the time in seconds after the ball was thrown and f(t) represents its height, in feet, from the ground.

Part A. How high is the roof from the ground? How many seconds did it take for the ball to hit the ground after it was thrown off the roof?

Part B. Jimmy wanted to throw the ball at a maximum height of 120 feet. Did Jimmy's baseball reach this height after it was thrown? Explain your answer.

41*67/2=1373.5

step-by-step explanation:

i just used a calculator

just get this app called photo math it should be able to do those

i think it’s c i believe

alright so i think for this one it would to draw it out. this may be hard for me to try and draw, but i will do my best on here:

        r

  /       |     \

notice how it forms 2 triangles inside one bigger triangle.

so if we know the angle spr is the same as psr that is saying the measure of angle p is the same as angle s. this means the big triangle psr is either isosceles or equilateral. in both cases, the triangle is perfectly symmetrical when split down the middle, which is in this case rq. because we know it is perfectly symmetrical on both sides, we know that the two triangles inside the bigger one are equal.