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
barxatty [35]
3 years ago
12

16. A rectangle of length (4x - 1) cm and breath 2xcm has an area of 10cm2. Find

English
1 answer:
aleksklad [387]3 years ago
6 0
A) 2x(4x-1)=10

Expand

8x^2-2x=10

Divide all terms by 2

4x^2-x=5

4x^2-x-5=0

4x^2+4x-5x-5=0

4x(x+1)-5(x+1)=0

(4x-5)(x+1)=0

x is equal to -1 and 5/4

but, in this case, the side of a rectangle cannot be negative, so the only answer that is mathematically possible is 5/4

b) substitute 5/4 into given expressions

length: 4(5/4)-1 which is 4cm

width: 2*5/4 which is 2.5cm

c) plus all four sides together

2.5+2.5+4+4 which is 13cm



You might be interested in
What should I write my horror narrative about?
irina1246 [14]

About the rapture or something that has to do with real life that people fear


5 0
3 years ago
Read 2 more answers
THE VOYAGES OF DOCTOR DOLITTLE
Mashcka [7]

Answer:

Tommy hoped to live a life of adventure in his youth.

5 0
3 years ago
To take pay and not to do work____dishonest​
Anika [276]

Answer:

The answer is     <em><u>"IS"</u></em>

Explanation:

This is a conjunction that is used to complete or join a sentence together.

Okay, hope it helps.

3 0
3 years ago
Who is in charge of selecting elements and setting the tone for an entire publication that consists of many contributing parts?
noname [10]
Publication President
5 0
3 years ago
May u plz help me with this :)
m_a_m_a [10]

Answer:

BOX 2

Explanation:

Chart 3

4 0
4 years ago
Other questions:
  • What ironic twist does the story take?
    11·1 answer
  • Someone who enjoys working with numbers and words, facts, and data would have an interest in _____.
    11·1 answer
  • How does the burial of Madeline help advance the plot of the story? (The Fall of the House of Usher)
    10·1 answer
  • American government<br> -Define Regulation-
    13·1 answer
  • Choose the correct answer.
    9·1 answer
  • How did science influence the Victorian era? Scientific inquiry was frowned upon by popular culture. Scientific progress became
    5·1 answer
  • Arbin said to Nilu," please be quite" change into indirect speech<br>​
    7·1 answer
  • I GIVE BRAINLIEST PLEASE HELP its simple grammar but I'm from Europe so it's hard for me. That's the rest of the other question​
    5·1 answer
  • Plz help!!! im confused
    5·2 answers
  • Figurative language that compares one thing to another unlike thing in a series of lines is called
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!