Honestly? Just review your notes and try to work out the problems yourself before taking a look at the answer. You can also google specific topics that the test will cover and try the practice problems.
F(x)=-5t^2+20t+60
Divide everything by -5
f(x)=t^2-4t-12
(t-6)(t+2)
Set it up to zero
t-6=0. t+2=0
t=6. t=-2
Since you can’t have negative seconds, the answer is 6 seconds
Answer:
I simplify it and got 5x^2+z+6
Step-by-step explanation:
(4x2 – 2x+8)+(x² + 3x - 2)v=5x^2+z+6
0.7<span> and </span>0.70<span> are two ways to say 7/10
hope this helps!</span>
