Hint #1: Substitute in 15 for s(t) in the given equation. Hint #2: Use the Quadratic Formula or DESMOS

9)
Dennis the Menace is
shooting a rock with his
slingshot with an initial
height of 5 feet. The height,
in feet, of the rock above
the ground is given by
s(t) = -16t+44t + 5,
where t is time in seconds
and t > 0. At what time
will the rock be 15 feet
above the ground?

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90

you should talk someone who owns the website about it. you did not deserve to have all that hard work and time taken away. id watch videos of little puppies to cool you down, and maybe some nacho cheese doritos.

you have to find the same variables -3n - 5n so this would be -3n +(-5n) which equals -9n