Answer:
m and k
Step-by-step explanation:
If the ball hit the ground it means that its height is equal to 0. In order to find the time after the ball <span>will hit the ground, we need to find the solution of the equation h(x)=0 which is different to 0.
-4.9x^2+21.3x=0
x(-4.9x+21.3)=0
-4.9x+21.3=0
x=21.3/4.9 = 4.3469 seconds</span>
19-20 = -1 u have to subtract left from tight <span />
Answer:
I think −
4
⁴ − 5
²
Step-by-step explanation:
I might be wrong.
Answer: 5(a+4)
Step-by-step explanation: