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Chapter 5: Q.72 (page 499)

The polynomial C(x)=6x2+90xgives the cost, in dollars, of producing a rectangular container whose top and bottom are squares with side xfeet and height 4feet. Find the cost of producing a box with x=6feet.

Short Answer

Expert verified

The cost of producing a box with x=6is756.

Step by step solution

01

Step 1. Given Information 

The polynomial C(x)=6x2+90xgives the cost, in dollars, of producing a rectangular container whose top and bottom are squares with side xfeet and height 4feet.

We find the cost of producing a box with x=6feet.

02

Step 2. The given polynomial function is C(x) = 6x2 + 90x

The function isC(x)=6x2+90x

putting x=6

C(6)=6(6)2+90脳6C(6)=6脳36+90脳6C(6)=216+540C(6)=756

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