When it hits the ground, then h=0
find the xintercept or in this case the tintercepts
c=76
v=135
h=-16t^2+135t+76
use quadratic formula
ax^2+bx+c=0
x=
![\frac{-b+/- \sqrt{b^2-4ac} }{2a}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-b%2B%2F-%20%5Csqrt%7Bb%5E2-4ac%7D%20%7D%7B2a%7D%20)
a=-16
b=135
c=76
x=
![\frac{-135+/- \sqrt{135^2-4(-16)(76)} }{2(-16)}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-135%2B%2F-%20%5Csqrt%7B135%5E2-4%28-16%29%2876%29%7D%20%7D%7B2%28-16%29%7D%20)
x=
![\frac{-135+/- \sqrt{18225+4864} }{-32}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-135%2B%2F-%20%5Csqrt%7B18225%2B4864%7D%20%7D%7B-32%7D%20)
x=
![\frac{-135+/- \sqrt{23089} }{-32}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-135%2B%2F-%20%5Csqrt%7B23089%7D%20%7D%7B-32%7D%20)
aprox
x=-0.5297 or 8.967
exclude the negative root since you can't have negative time
means that it takes 8.97 seconds to hit the ground
Answer: 141.3 in
1. V = πrh
2. V = (3.14)(
)(5)
3. V = 141.3 in.
Hope this answer helps you!
Answer:
B
Step-by-step explanation:
I think you need to attach a picture or provide more context
Answer: 2
Step-by-step explanation: add 2+2 lmbo