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
denpristay [2]
3 years ago
10

8) The perimeter of a rectangle is 20x2 + xy - 7y2 and one of it's sides is

Mathematics
1 answer:
Sedbober [7]3 years ago
5 0

Answer:

3x^2 + 3xy/2 - 7xy^2/2

Step-by-step explanation:

So we know the perimeter is 20x^2 + xy - 7y^2,

To find any perimeter you need 2l + 2w = P so,

One of the sides is 7x^2 - xy

First plug in the values,

2(7x^2-xy) + 2w = 20x^2 + xy - 7y^2

Multiply,

14x^2-2xy + 2w = 20x^2 + xy - 7y^2

Subtract,

14x^2 - 2xy - 14x^2 + 2xy + 2w = 20x^2 + xy - 7y^2 - 14x^2 + 2xy

2w = 6x^2 + 3xy - 7y^2

w = 3x^2 + 3xy/2 - 7xy^2/2

You might be interested in
What is 3774 divided by 37
Strike441 [17]
102 thts the anwser ur welcome
6 0
3 years ago
*repost since nobody answered* how would i answer this?
pshichka [43]

Answer:

b is not a function

Step-by-step explanation:

To be a function there must be a one to one correspondence.

Each x must only go to one y

b has an x that goes to two different y's

1 goes to 5 and 13.  That makes it a relation not a function

7 0
3 years ago
1. Which of the following does NOT represent a whole number? 9 6.0 12/4 -12/3​
Ivahew [28]

the answer is -12/3 cause it's negative

5 0
3 years ago
Which solution contains the correct number of significant digits for the product 2.80 mm · 0.1 mm.
BigorU [14]
2 significant digits should be represented in the product
8 0
3 years ago
Please help! Will give brainliest
Nina [5.8K]

Answer:

d=1/2

b=1/25

b(row 2)=1/5

e=7/100

explanation: think about them as numbers out of 100 then simplify :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • Raul opened a savings account with $3,500 . Each week , x , raul pays the dog sitter $25 from his saving account. Write a functi
    8·1 answer
  • 3(x+2)<2(x-1) solve this inequality
    7·1 answer
  • A pallet requires 2 mins 15 seconds to prepare for shipment and 30 seconds to load on a trailer how long will it take to prepare
    8·2 answers
  • Which is a factor of 24x2 − 44x + 12?<br> 3<br> 3x + 3<br> 3x − 2<br> 2x − 3
    10·2 answers
  • What type of transformations occurred to Triangle ABC?
    8·2 answers
  • PLEASE HELP
    11·1 answer
  • What does changing the “a” do to the graph of a quadratic equation?
    15·1 answer
  • How many swimmers are holding exaclty 3 toy whales? ​
    9·1 answer
  • Find the perimeter and area of the figure.
    9·1 answer
  • Click on the point f(-3)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!