The eqution of height y in terms of the time x is
We are asked when the rocket will strike the ground, so that is the same that sayin when will the rocket's height will be zero again, that is, y=0. so we have to solve
the solutions of this equations are
![x=\frac{-116\pm\sqrt[]{116^2-4(-16)(7)}}{2(-16)}=\mleft\{\begin{aligned}-0.05 \\ 7.3\end{aligned}\mright.](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-116%5Cpm%5Csqrt%5B%5D%7B116%5E2-4%28-16%29%287%29%7D%7D%7B2%28-16%29%7D%3D%5Cmleft%5C%7B%5Cbegin%7Baligned%7D-0.05%20%5C%5C%207.3%5Cend%7Baligned%7D%5Cmright.)
So, the rocket will strike the ground after 7.3 seconds
Ashely reads 3 chapters in her book each night. Jordon reads 8 chapters in a book each night. Will reads 2 chapters per night, but they are very long. How many chapters do they read per night all together?
Answer:
Step-by-step explanation:
answer
Answer:
-5
Step-by-step explanation:
(-44) + (-10) + 49
=> 49 - 44 - 10
=> 49 - 54
=> -5
