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
spayn [35]
3 years ago
8

You have 64 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river

find the length and width of the plot will maximize the area.
A) length: 33 feet, width: 32 feet
B) length: 16 feet, width: 16 feet
C) length: 48 feet, width: 16 feet
D) length: 32 feet, width: 16 feet
Mathematics
2 answers:
DIA [1.3K]3 years ago
4 0

Answer:

D

Step-by-step explanation:

You don't need any real math to guess at the right answer.

Choice A requires at least 33+32+32=97 feet of fence, hence you  an rule it out because that is more fence than you have.

Choice B requires at least 16+16+16=48 feet, hence you can rule it out because it does not use all your fence and you can get more area by using it all.

Choice C requires at least 48+16+16=80 feet of fence, which is more than you have.

Choice D requires at least 32+16+16=64 feet of fence, so this is the right choice.

nordsb [41]3 years ago
4 0

Answer:

Step-by-step explanation:

2L+W=64\\ \\ W=64-2L\\ \\ A=LW\\ \\ A=64L-2L^2\\ \\ \frac{dA}{dL}=64-4L=0\\ \\ 4L=64\\ \\ L=16\\ \\ W=64-2(16)\\ \\ W=32\\ \\ \text{So the lengths are 32ft by 16ft}

You might be interested in
Which expression is equivalent to 6m+(m-2)(m+7)+3
Vika [28.1K]

Answer:

m^{2} + 11m - 11

Step-by-step explanation:

6m+(m-2)(m+7)+3  =   6m   +  [ m*m - 14 -2m + 7m]  + 3

=  6m  + mm - 14 + 5m  + 3

=  mm + 11m - 11

6m+(m-2)(m+7)+3   = m^{2} + 11m - 11

5 0
3 years ago
What is the value of 5-8×(7-15+8)
salantis [7]

Answer:

I'm pretty sure that the answer is 5. Correct me if i'm wrong

Step-by-step explanation:


6 0
3 years ago
Which is more, 13 feet or 4 yards?
NikAS [45]

Answer:

it is 13 feet

Step-by-step explanation:

because it is 4.33333 yards

3 0
3 years ago
How to solve -5 + 13y = -7
zubka84 [21]

Answer:

y = -2/13

Step-by-step explanation:

-5 + 13y = -7

Add 5 to each side

-5+5 + 13y = -7+5

13y = -2

Divide by 13

13y/13 = -2/13

y = -2/13

5 0
3 years ago
Read 2 more answers
1439<br> 31<br> a. 71.9<br> b. 62<br> c. 56.3<br> d. 42.4<br> Solve for x
Tcecarenko [31]

Answer:

C26 is also a Category of EAD (Employment Authorization Document) provided to immigrant workers in U.S. These are dependents of H1b visa holders commonly referred to as H4-EAD.

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • What is the value of the expression: x - 3y
    5·1 answer
  • What is the area of the figure in square millimeters and in square centimeters?
    13·1 answer
  • Can someone help me solve this please due today
    13·2 answers
  • 8(6+2) = 48 + 2 + 50
    6·1 answer
  • Adjacent angles are congruent true or false
    9·2 answers
  • In Jamie's math class nine students chose soccer as their favorite sport. This amount represents 3/8 of the entire class the equ
    12·2 answers
  • What is the x value for 21x+7y=42
    7·2 answers
  • If mLM=25 and mLL=25, find mLJKM<br><br> 50<br> 18<br> 162<br> 117
    14·1 answer
  • HELP
    10·2 answers
  • A train station is between the towns Antville and Bugville. The station is four times as far from Bugville as it is from Antvill
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!