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
Amanda [17]
3 years ago
6

Apel Sinoman has 100 ft of fencing material to enclose a rectangular exercise run for her dog. One side of the run will border h

er​ house, so she will only need to fence three sides. What dimensions will give the enclosure the maximum​ area?

Mathematics
1 answer:
Olegator [25]3 years ago
5 0

Answer:

For maximum area of the rectangular exercise run dimensions will be 50ft by 25ft.

Step-by-step explanation:

Let the length of the rectangular exercise run = l ft

and width of the run = w ft

Sinoman has to cover a rectangular exercise run from three sides with the fencing material,

So length of the material = (l + 2w) ft

l + 2w = 100

l = 100 - 2w --------(1)

Area of the rectangular area covered = Length × width

A = lw

A = w(100 - 2w)    [(l = 100 - 2w)from equation (1)

For maximum area we find the derivative of area and equate it to zero.

\frac{dA}{dw}=\frac{d}{dw}[w(100-2w)]

A'=\frac{d}{dw}(100w-2w^{2} )

A' = 100 - 4w

For A' = 0

100 - 4w = 0

4w = 100

w = 25 ft

From equation (1)

l = 100 - 2w

l = 100 - 2×(25)

l = 50 ft

Therefore, for maximum area of the rectangular exercise run dimensions will be 50ft by 25ft.

You might be interested in
If 1+4=5 and 2+5=12 and 3+6=18 what does 8+11=
stepladder [879]
1+4=5 & 2+5=12 THE REASON FOR 2+5=12 IS <span>5+2+5=12
</span>So the same is for the next

6 0
3 years ago
85 on a 7-hour clock
mihalych1998 [28]

Answer.

Step-by-step explanation:

7 0
3 years ago
Put the following equation of a line into slope-intercept form, simplifying all
Alexeev081 [22]

Answer: x-3y+21=0

Step-by-step explanation:

move the constant to the left then divide both sides then booom

6 0
3 years ago
What is the correct equation of the circle with the center (4, 6) and radius 6?
jasenka [17]

I know it's either A B C or D.

6 0
3 years ago
What is the product of (-a + 3)(a + 4)?
spayn [35]

Answer: The product of (-a + 3)(a + 4) is:  -a^2-a+12

Step-by-step explanation:

(-a+3)(a+4) = -a*a-a*4+3*a+3*4

=-a^{2} -4a+3a+12

now just simply combine..

=-a^2-a+12

the answer is -a^2-a+12

8 0
2 years ago
Other questions:
  • Roughly how many miles is it from beijing to shanghai:6 miles, 60 miles, 600 miles, 6000 miles, or 60, 000 miles
    9·1 answer
  • Lines that form the outer edge of a three-dimensional shape and suggest its volume are called
    10·1 answer
  • What is the LCD of 25,50, and 75 ?
    15·1 answer
  • Y=6xy = 5x + 7 substitution
    9·1 answer
  • I bought 7 boxes of shotgun shells for $71 not counting sales tax. One type of shell costs $5 per box and the other costs $14 pe
    12·1 answer
  • What law can be used to determine that the conclusion is valid based on the given statements
    12·1 answer
  • BRAINLIEST + 10 POINTS
    15·2 answers
  • HELP ASAP (Brainliest)
    10·1 answer
  • Find the measure of angle a<br>​
    10·2 answers
  • 6 - 3x = -6 PLEASE ANSWER FAST I NEED HELP!!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!