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LORIINANIN
Answered

The volume of a rectangular box of width x is V(x) = 2x3-84x2+864x. What width is used for a box with a volume of 2470cm3? ​

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LALABSUIN

Answer:

w = 5

Step-by-step explanation:

V(x) = 2x³-84x²+864x

w = x

v = 2470

2470 =2x³-84x²+864x

2x³-84x²+864x-2470=0

2(x-5)(x²-37x+247)=0

x-5=0 , x²-37x+247=0

x = 5 ,37+√381 over 2 ,37-√381 over 2

w = x = 5

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