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
Jlenok [28]
3 years ago
10

A rectangular pen is to contain 108 ft^2 of area. if the width is 3 feet less than the length, find the dimensions of the pen.

Mathematics
1 answer:
velikii [3]3 years ago
6 0

Answer:width is 9ft

Length is 12 ft

Step-by-step explanation:

Let L represent the length of the rectangle.

Let W represent the width of the rectangle.

The area of a triangle is expressed as length, L × Width, W.

Area of the rectangular pen is 108 ft^2. Therefore,

LW = 108 - - - - - - - 1

if the width is 3 feet less than the length, it means that

W = L - 3

Substituting W = L - 3 into equation 1, it becomes

L(L - 3) = 108

L^2 - 3L = 108

L^2 - 3L- 108 = 0

L^2 + 9L- 12L - 108 = 0

L(L + 9) - 12(L + 9) = 0

L - 12 = 0 or L + 9= 0

L = 12 or L = - 9

The length cannot be negative,

so Length = 12ft

W = 108/L = 108/12 = 9 ft

You might be interested in
Read the caption! Thanks, if you can helps thank you
Kamila [148]

Step-by-step explanation:

For a triangle, any 2 side lengths of the triangle must be greatee than the 3rd side.

Given a triangle with side lengths 11, 23 and x,

we have:

  • 11 + 23 > x,
  • 11 + x > 23, and
  • 23 + x > 11.

Therefore 34 > x and x > 12. => 12 < x < 34.

8 0
3 years ago
Read 2 more answers
(5-12)^2+8/(-2) help pleaaaaase
OlgaM077 [116]
(5-12)^2+8/(-2)
(-7)^2+8/(-2)
(49)+8/(-2)
(49)+(-4)
45

Using PEMDAS, your answer would be 45.
8 0
3 years ago
Which of the following is the solution to the equation 25(z − 2) = 125? (6 points)
makvit [3.9K]

Answer:

z=7

Step-by-step explanation:

25(−2)=125

25−50=125

3 0
3 years ago
Is 3, 1, 1/3, 1/9,... a geometric sequence?
barxatty [35]
a_1;\ a_2;\ a_3;\ a_3;\ ...;\ a_n;\ a_{n+1};...\ is\ a\ geometric\ sequence\\if\ a_{n+1}:a_n=const.\\-------------------\\a_1=3;\ a_2=1;\ a_3=\dfrac{1}{3};\ a_4=\dfrac{1}{9}\\\\a_4:a_3=\dfrac{1}{9}:\dfrac{1}{3}=\dfrac{1}{9}\cdot\dfrac{3}{1}=\dfrac{1}{3}\\\\a_3:a_2=\dfrac{1}{3}:1=\dfrac{1}{3}\\\\a_2:a_1=1:3=\dfrac{1}{3}\\\\Answer:Yes.\ It's\ the\ geometric\ sequence.
7 0
3 years ago
Pls I need help with this ASAP
andrew-mc [135]

Answer:

The answer is 30.

Step-by-step explanation:

All of those angles will add up to 360 degrees. Since 150 is the same as the angle across from it that means the other one is 150. Add those 2 together that gets 300. So what is left? It is 60. So divide 60 between those two angles and you get 30.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is 6 to the second power divided by 2(3)+4=
    8·2 answers
  • Trees are planted 6 metres apart on both sides of road 48 metres long.how many trees were planted​
    10·2 answers
  • The probability of any one object cannot be larger than what number?
    9·1 answer
  • Which expression does NOT equal 4/5?<br> 4 x 1/5<br> 2 + 2/5<br> 1/5 + 1/5 + 1/5 + 1/5<br> 2 x 2/5
    6·2 answers
  • What is the discriminant of the quadratic equation 0=2x^2 + 3x -5? 0-37 -31 0 43 049​
    8·1 answer
  • What is the main difference when finding an inverse and solving a square root equation?
    5·2 answers
  • HELP PLEASE IM GOING TO FAIL WILL GIVE BRAINLESS
    7·1 answer
  • Write the possible combinations of coins that could make $3.55
    13·1 answer
  • Without using a calculator, fill in the blanks with two consecutive integers to complete the following inequality
    5·1 answer
  • Airplanes arrive at a regional airport approximately once every 15 minutes. If the probability of arrivals is exponentially dist
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!