You use 187 feet of wire to make three sides of a rectangular pen. The fourth side is the wall of a barn. If you use w feet for the width, the area you enclose is given by
square feet.
A: Make a graph of A versus w. In choosing a viewing window, you should bear in mind that the width will certainly be no more than half the total amount of fence.B: What width gives the maximum area? Round your answer to two decimal places, if necessary.C: What is the maximum area? Round your answer to two decimal places, if necessary.
What will be an ideal response?
?
?
?
B: 46.75 feet
?
C: The maximum area is 4371.13 square feet.
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Write the fraction in simplest form. Assume that all variable factors in the denominator are not equal to zero.
A. 
B. 
C. 
D. 
Evaluate the function requested. Write your answer as a fraction in lowest terms.Find cos ?.
A. 
B. 
C. 
D. 
Solve.Find the amount of discount when the original price is $245.60 and the discount rate is 20%.
A. $240.69 B. $49.12 C. $4.91 D. $196.48
For the given expression, write two equal expressions with negative signs in different places.
A. - 
and - 
B. - 
and 
C. 
and 
D. - - 
and 