Answer:
Step-by-step explanation:
The vertex form of an equation of a parabola:
(h, k) - vertex
We have
We must use the formula: 
Use the distributive formula a(b + c) = ab + ac
Answer:56
Step-by-step explanation:add all the sides together
Move the decimal to the right 8 places
Answer:
150 pi inches or 471.239 inches traveled
Step-by-step explanation:
First, close your eyes, and think about the distance a bike travels after one rotation of the wheel.
You will come to the realization that a full rotation of the wheel makes you travel the circumference of the wheel
The formula for circumference is 2(pi)(r) or (pi)(diameter)
We are given diameter, so let's find distance traveled for one rotation
pi(15 inches) = 15pi inches per rotation.
There are 10 rotations, so:
(15pi inches/rotation)(10 rotations) = 150pi inches travelled
150 x pi = 471.239 inches traveled
