8, 3/4-foot lengths of pipe can be cut from a 6 1/3-foot pipe.
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Answer:
Step-by-step explanation:

fales that is never gonna be proofen right
Equation of a circle in standard form:
(x-h)²+(y-k)²=r²
r=radius
(h,k) is the center.
In this case:
(h,k) =(0,0) (h=0,k=0 )
r=4
Therefore:
(x-0)²+(y-0)²=4²
x²+y²=16
Answer: x²+y²=16
Answer:
A straight line through the origin, and with a positive gradient (sloping from bottom left to top right)