1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Yuki888 [10]
3 years ago
11

A farmer wants to fence an area of 13.5 million square feet in a rectangular field and then divide it in half with a fence paral

lel to one of the sides of the rectangle. What should the lengths of the sides of the rectangular field be so as to minimize the cost of the fence?
Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
3 0
  <span>13.5 = lw 

13.5/l = w 

3l + 2w = C 

C = 3l + 2*(13.5/l) 

C = 3l + (27/l) 

dC(l)/dl = 0 

3 - (27/l^2) = 0 

3*(l^2) - 27 = 0 

(l^2) - 9 = 0 

(l - 3)*(l + 3) = 0 

l = 3 

13.5 = 3w 

l = 3000; w = 4500

Therefore, to minimize the cost of the fence, length should be 3000 ft while width should be 4500 ft.</span>
You might be interested in
What is the greatest common factor of 60 and 90?
aivan3 [116]
The gcf of 60 and 90<span> is the largest positive integer that divides the numbers 60 and 90 without a remainder. Spelled out, it is the greatest common factor of 60 and 90  

The answer is 30 </span>
6 0
3 years ago
Read 2 more answers
Estimate 23,945 + 46,718 by rounding to the highest place value.
kolbaska11 [484]
The highest place value is in the ten thousand for both of these numbers. Let's round the two numbers first, and then we will add them. Let's round 23,945. So, we need to round to the ten thousand place, so we look at the number behind it (3) and act accordingly.
Remember:
5 or more? Raise the Score
4 or less? Let it Rest
We are looking at the bolded number: 23,945. This number is 4 or less, so we let it rest. So, the new rounded number is 20,000. 
Now let's look at 46,718. So, we need to round to the ten thousand place, so we look at the number behind it (6) and act accordingly. Look at the bolded number: 46,718. This number is 5 or more, so we raise the score. The new rounded number becomes 50,000.
Now, all you have to do is add 20,000+50,000, which is 70,000. Hope this helped!
4 0
3 years ago
What’s the equation?
juin [17]

Answer:

Step-by-step explanation:

(x1,y1)and (x2,y2)

3 0
2 years ago
Read 2 more answers
The perimeter of the rectangle below is 16 Solve for X​
Mrac [35]

Answer:

x = 5

Step-by-step explanation:

The opposite sides of a rectangle are equal , then perimeter

2(- 2x - 6) + 2(4x + 4) = 16 ← distribute parenthesis and simplify left side

- 4x - 12 + 8x + 8 = 16

4x - 4 = 16 ( add 4 to both sides )

4x = 20 ( divide both sides by 4 )

x = 5

4 0
3 years ago
Read 2 more answers
»
natita [175]

Answer:Rhombuses :)

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • The length of a rectangle is 5 inches more than the width. The perimeter is 70 inches. Find the length
    5·1 answer
  • The two matrices show the cost of three different electronics prices (rows) at two different stores (columns). Matrix F is from
    7·2 answers
  • How do you simplify <img src="https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B9%5E%7B0%7D%20%7D" id="TexFormula1" title="\frac{8}{9^{0}
    11·1 answer
  • Listed below are prices in dollars for one night at different hotels in a certain region. Find the​ range, variance, and standar
    8·1 answer
  • If a line has a slope of 2 and contains the point (-2, 1) what is the equation in point slope form
    9·1 answer
  • Help please! Also please show the steps of how you got the answer!<br> 30% of 40% of 15
    7·1 answer
  • Alecia builds a box in the shape of a cube with an open top. She plans to paint the box. Alecia calculates that there are 256 sq
    7·2 answers
  • What is the Definition for alternate interior angles?
    11·2 answers
  • Use the number line to complete the statements.
    6·1 answer
  • NO LINKS!! Please help me part 2​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!