Question

In: Math

A rectangular area adjacent to a river is to be fenced in, but no fencing is...

A rectangular area adjacent to a river is to be fenced in, but no fencing is required on the side by the river. The total area to be enclosed is 114,996 square feet. Fencing for the side parallel to the river is $6 per linear foot, and fencing for the other two sides is $7 per linear foot. The four corner posts cost $25 apiece. Let xx be the length of the one the sides perpendicular to the river.

[A] Find a cost equation C(x)C(x):
C(x)=C(x)=    

[B] Find C'(x)C′(x):
C'(x)=C′(x)=    

[C] Find the appropriate critical value(s) for the appropriate domain in the context of the problem.
   

[D] Perform the second derivative test to determine if there is an absoulte minimum at the critical value found.
C''(x)=C′′(x)=   

[E] What is the best conclusion regarding an absolute maximum or minimum at this critical value. (MULTIPLE CHOICE)

a) At the critical value C''(x)>0C′′(x)>0 so I can conclude that there is a local/relative maximum there but I can't conculde anything about an absolute maximum for x>0x>0

b) Since C''(x)>0C′′(x)>0 for all x>0x>0 we can colude that the CC is concave up for all values of x>0x>0 and that we therefore have an absolute minimum at the critical value for x>0x>0

c) Since C''(x)>0C′′(x)>0 for all x>0x>0 we can colude that the CC is concave up for all values of x>0x>0 and that we therefore have an absolute maximum at the critical value for x>0x>0

d) The second derivative test is inclusive with regards to an absolute maximum or minimum and the first derivative test should be performed

e) At the critical value C''(x)>0C′′(x)>0 so I can conclude that there is a local/relative minimum there but I can't conculde anything about an absolute minimum for x>0x>0



[F] Find the minimum cost to build the enclosure: $

*Please show all work associated*

Solutions

Expert Solution


Related Solutions

A rancher has 600 feet of fencing to enclose two adjacent rectangular corrals (see figure). (a)...
A rancher has 600 feet of fencing to enclose two adjacent rectangular corrals (see figure). (a) Write the area A of the corrals as a function of x. A(x) = (b) Construct a table showing possible values of and the corresponding areas of the corral. (Round your answers to two decimal places.) x A 55 60 65 70 75 80 Use the table to estimate the dimensions that will produce the maximum enclosed area. (Round your answers to two decimal...
Fencing a Farmer’s Field As a farmer, suppose you want to fence off a rectangular field that borders a river.
Fencing a Farmer’s Field As a farmer, suppose you want to fence off a rectangular field that borders a river. You wish to find out the dimensions of the field that occupies the largest area if you have 2000 feet of fencing. Remember that a square maximizes area, so use a square in your work. - Draw several diagrams to express the situation and calculate the area for each configuration, then estimate the dimension of the largest possible field. -...
Find the dimensions of the rectangular corral producing the greatest enclosed area given 200 feet of fencing.
Find the dimensions of the rectangular corral producing the greatest enclosed area given 200 feet of fencing.
I would like to create a rectangular vegetable patch. The fencing for the east and west...
I would like to create a rectangular vegetable patch. The fencing for the east and west sides costs $4 per foot, and the fencing for the north and south sides costs only $2 per foot. I have a budget of $96 for the project. What are the dimensions of the vegetable patch with the largest area I can enclose? HINT [See Example 2.]
A farmer wants to fence in a rectangular plot of land adjacent to the north wall...
A farmer wants to fence in a rectangular plot of land adjacent to the north wall of his barn. No fencing is needed along the barn, and the fencing along the west side of the plot is shared with a neighbor who will split the cost of that portion of the fence. If the fencing costs $16 per linear foot to install and the farmer is not willing to spend more than $4000, find the dimensions for the plot that...
Optimization: a) You are attempting to use 1000 yards of fencing to make one rectangular pasture....
Optimization: a) You are attempting to use 1000 yards of fencing to make one rectangular pasture. What’s the largest pasture you can make, and what are the lengths of the sides of the fencing? (First, write a function A(x) that expresses the total area in terms of the width x.) b) Using the same amount of fencing (1000 yards) to make two rectangular pastures of equal area, what are the largest pastures you can make, and what are the lengths...
The total surface area is the sum of the triangular area and rectangular area. Complete the...
The total surface area is the sum of the triangular area and rectangular area. Complete the following code to compute the total surface area of the shape. ??????? ???? = 12 ∗ ???? ∗ ????h? + ???? ∗ ????h This Java program prompts for and reads in the value of height, base, and width in feet.This program uses two methods: Train_area and Rect_area to calculate the area of the triangle and the area of the rectangle, respectively. The following parameters:...
A winter recreational rental company is fencing in a new storage area. They have two options....
A winter recreational rental company is fencing in a new storage area. They have two options. They can set it up at the back corner of the property and fence it in on four sides. Or, they can attach it to the back of their building and fence it in on three sides. The rental company has decided that the storage area needs to be 100 m2 if it is in the back corner or 98 m2 if it is...
Queen Chloe is planning to build a castle inside of a rectangular moat. A river runs...
Queen Chloe is planning to build a castle inside of a rectangular moat. A river runs horizontally along the bottom of her land, and that river will form the bottom of the moat, but the other three sides must be dug by a ditch digging company. For the two vertical sections of the moat, the company will charge 1 gold piece per meter. But because the moat digging becomes easier further from the river, the company offers a discount to...
As a farmer, suppose you want to fence off a rectangular field that borders a river....
As a farmer, suppose you want to fence off a rectangular field that borders a river. You wish to find out the dimensions of the field that occupies the largest area, if you have 1200 feet of fencing. Remember that a square maximizes area, so use a square in your work. Draw several diagrams to express the situation and calculate the area for each configuration, then estimate the dimension of largest possible field. Find the function that models the area...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT