The equation C(l) = l3 – l2 + l + 2.5 models the cost to mail a package as a function of its length. To the nearest quarter inch, approximately what is the length of a package that costs $11.00 to mail? Enter your answer as a decimal.
inches

Step-by-step explanation:

Set the cost equation C(l) = l3 – l2 + l + 2.5 equal to $11.00 and solve for l:

                                     C(l) = 2l + 2.5 = $11, or

                                               2l = 8.5, or l = length = 4.25 inches

find the magnitude of the trig term  

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1

find the lower bound of the range.

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y

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find the upper bound of the range.

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y

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the range is  

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or  

y

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(

−

∞

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{

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step-by-step explanation:

answer: i guess 5 units?

step-by-step explanation: