Two polynomials are equal if the coefficients are equal.

(x-3)(3x+7)=0
x-3=0 or 3x+7=0
1. x-3=0
x₁=3
2. 3x+7=0
3x=-7
x₂=-7/3 = -2(1/3)
Cylinder height = volume / PI * radius^2
cylinder height =1,205.76 / PI * 8^2
cylinder height =
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5.9969582557
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which I guess can be safely rounded to 6 inches
Source www.1728.com.diamform.htm
Answer: 240 km
Step-by-step explanation:
From the graph :
50 miles = 80km
1 miles = 80/50 km
Therefore :
150 miles = 80/50 x 150
150 miles = 240 km