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
zheka24 [161]
3 years ago
9

Draw a rectangle that has a area of a square Units and a perimeter of 12 units what are the side length of the rectangle

Mathematics
1 answer:
inysia [295]3 years ago
7 0
Let s represent the length of one side of this rectangle, and w represent the width of the rectangle (length of one end).  Then 2s + 2w = 12 units, and the area is a = s*w.  Using the previous equation we can eliminate either s or w.  Since we want s, eliminate w:  2w = 12 - 2s, or w = 6 - s.

Then the area of the rect. is a = s(6 - s) = 6s - s^2.

You have not shared the actual area of the rect., but have represented it by "a."

Suppose that the area is given and is 90.  Then 90 square units = 6s - s^2, so that -s^2 + 6s - 90 = 0.  Using the Pyth. Thm., we find s as follows:

       -6 plus or minus sqrt( 6^2 - 4(-1)(-90)
s = ---------------------------------------------------
                            2(-1)

Unfortunately, s would come out as a pair of complex numbers, which is not possible in a situation where you're calculating lengths.

Please recheck this problem.  Was the aera of the rectangle, a, given?
You might be interested in
Maya spent her allowance on playing an arcade game a few times and riding the Ferris wheel more than once.
faust18 [17]

Answer:

Sample Response: To write a two-variable equation, I would first need to know how much Maya’s allowance was. Then, I would need the cost of playing the arcade game and of riding the Ferris wheel. I could let the equation be cost of playing the arcade games plus cost of riding the Ferris wheel equals the total allowance. My variables would represent the number of times Maya played the arcade game and the number of times she rode the Ferris wheel. With this equation I could solve for how many times she rode the Ferris wheel given the number of times she played the arcade game.

6 0
3 years ago
1<br> Identify the missing symbols: 2/5 4/5 5/5
riadik2000 [5.3K]

Answer: The symbol is < for both

4 0
3 years ago
A recipe calls for 15 oz of flour for every 8 oz of milk .is the relationship between ounces of four and ounces of milk proporti
pantera1 [17]
Yes, they are proportional because if you increase or decrease either amount they will both change. They will always have the same size. For example if I want to double the flour, I will have to double the milk as well because they have the same ratio. 
6 0
3 years ago
Read 2 more answers
Please help me! Struggling with Geometry! 45 points (proofs)
Damm [24]

Answer:

Step-by-step explanation:

It’s nothing

3 0
3 years ago
What does ⊥ mean in math ?<br> plz don't copy from g00gle
Viefleur [7K]

Answer:

Perpendicular

Step-by-step explanation:

It is a symbol used for showing any two lines perpendicular to each other.

7 0
3 years ago
Read 2 more answers
Other questions:
  • A street sign is 87 inches tall. How tall is it in feet and inches?
    12·2 answers
  • Need help filling out this worksheet on pro numerals. Im not even sure where to start.
    6·1 answer
  • F(x)+x^2-3x-2x is shifted 4 units left. The result is g(x). What is g(x)
    7·1 answer
  • A group of 180 students is divided into 20 teams for a competition. Write a unit rate that represents the number of students on
    5·2 answers
  • Hey all, can I get the answer + explanation for this? Would be much appreciated.
    10·1 answer
  • Randi gave 6 pieces of candy to each of
    13·2 answers
  • 12
    10·1 answer
  • 6<br> 5<br> -3 -2 -1<br> 2 3 4 5 6<br> -2<br> -3<br> Equation:
    7·1 answer
  • Help me please someone.
    14·2 answers
  • Easy question simplify
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!