Answer:
18
Step-by-step explanation:
Points A B C D and E are collinear.

Solve out
x^2 + 64 = 0
x^2 = -64 ( we are going to use imaginary numbers to solve)
x =

x = 8i, -8i final answers
Answer: 1.43 h
Step-by-step explanation:
Velocity is
is defined as the change in position (displacement)
of an object in a specific time
:

Where:
is the car's velocity
is the distance the winner car traveled
is the time
Isolating
:

Solving with the given information:

This is the winner's time
<span>2n^3-n^2-136 :Equation:
Substitute 0 for n
</span> Simplify {20}^{3}<span> to </span><span>8000
</span>
<span>8000−<span>0<span><span>^2</span><span></span></span></span>−136
</span> Simplify <span>{0}^{2}<span></span></span><span> to </span><span>0
</span><span><span>8000−0−136
= 7864</span></span><span>
</span>
Answer: 12n crisp
Step-by-step explanation: you dont know n so you just put 12 with n next to it indicating 12 times n