This is a difference of squares. Every time you have the difference between two squares, you can factor it as the product between the sum and the difference of the roots:
In your case, the squares are
So, the difference between the squares, 
can be written as the multiplication between the sum and difference of the roots:
Answer: 122 1/2 minutes
Step-by-step explanation:
I got this answer by first subtracting 5.25-3.50=1.75 and that was how many minutes it took per mile then I multiplied 1.75x70=122.50 to get my answer.
Answer: The slope would be <u>-1/5</u>
Heres a graph
Hope this helps!
Answer:
-4
Step-by-step explanation:
8+4y= -8
4y= -8 -8
4y= -16
divide both sides by the coeffient of the variable. in this case divide both sides by 4
y=-4
Answer:
Step-by-step explanation:
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