Answer:
x = 4
x = -4
Step-by-step explanation:
bro i dont know but i hope this help a little, sorry
Answer:
7-2x
Step-by-step explanation:
Move the expresion without change the signs of each numbers.
It would be a scalene triangle as all angles are different
Turn the 50 into a fraction (50/1) then cross multiply the fractions after that turn it into a equivalent fraction and you you get your answer
(I think)
Answer:
9.099 seconds
Step-by-step explanation:
The rock hits the surface of the moon when is t is 0.
![-t^2 + 8t + 10 = 0\\t^2 - 8t - 10 = 0](https://tex.z-dn.net/?f=-t%5E2%20%2B%208t%20%2B%2010%20%3D%200%5C%5Ct%5E2%20-%208t%20-%2010%20%3D%200)
Use the quadratic formula
t = -1.099 and 9.099
Since time can't be negative, the answer is t = 9.099