I need help please I need this for homework and I need help please
2 answers:
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Answer:
Width = 25
Length = 25
Area = 625
Step-by-step explanation:
The perimeter of a rectangle is given by the sum of its four sides (2L+2W) while the area is given by the product of the its length by its width (LW). It is possible to write the area as a function of width as follows:
The value of W for which the derivate of the area function is zero is the width that yields the maximum area:
With the value of the width, the length (L) and the area (A) can be also be found:
Since the values satisfy the condition W≤L, the answer is:
Width = 25
Length = 25
Area = 625
For this case we must compare the unit costs of the options given and determine which is the best option.
Option 1:
Six yards of rope costs $5.50
Option 2:
Four yards costs $ 4.75
Thus, the best option is the first. It is the lowest unit cost.
Answer:
The best option is the first. It is the lowest unit cost.