Eliminate parenthesis by using the distribution property
= 5x² -3x +3 - x² - 2x +1
Group similar terms
= (5-1)*x² + (-3 -2)*x + (3+1)
Then sum everything:
= 4x² -5x +4
First you have to figure out the length of the track:
![2 * \pi * r](https://tex.z-dn.net/?f=%202%20%2A%20%5Cpi%20%2A%20r%20)
r is the half of the diameter:
200ft : 2 = 100ft
![2* \pi *100ft](https://tex.z-dn.net/?f=%202%2A%20%5Cpi%20%2A100ft%20)
= 200
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
≈
628,31
The athlete has to run ca. 5280ft for one mile:
5280 : 628,31≈8,4
The athlete has to run 8,4 laps
this equation is not funcion.
Step-by-step explanation:
if u make a graph and u aline them with dots 2 or more dots will cross each other witch makes it not function:)
Answer:
8631.83
80074
6857
8631.83
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