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
Naily [24]
4 years ago
9

The length of a rectangle is 2 more than its width. If the area of the rectangle is 20m squared, what are the dimensions of the

rectangle, to the nearest tenth of a metre?
Mathematics
1 answer:
zvonat [6]4 years ago
6 0
L=2+W
A=LW
A=(2+W)W
20=2W+W^2
0=W^2+2W-20
use quadratic
fr
aw^2+bw+C=0
w=(-b+/-sqrt(b^2-4ac))/2a

a=1
b=2
c=-20

w=(-2+/-sqrt(2^2-4(1)(-20)))/2(1)
w=(-2+/-sqrt(4+80))/2
w=(-2+/-sqrt(84))/2
w=(-2+/-2sqrt(21))/2
w=1+/-sqrt(21)
aprox
w=-3.58 or 5.58
cannot have negative width
w=5.58
round
w=5.6
sub
l=2+w
l=2+5.6
l=7.6


legnth=7.6m
width=5.6m
You might be interested in
What does 75% mean?
aksik [14]

Answer:

75% means a c if you are in the U.S

Two out of five means you got a 40%

1 out of two means 50%

60% is a D

If you got 1 wrong on a test that had 5 questions you did well and it is 80 percent.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
(2x - 3y)(4x - y) Please help
andre [41]
(2x - 3y) (4x - y) = 8x² - 2xy - 12xy + 3y²

(2x - 3y) (4x - y) = 8x² -14xy  + 3y²

---------------------------------
Answer:8x² -14xy  + 3y²
---------------------------------

3 0
3 years ago
Can someone solve number 22 step by step?
Nana76 [90]

Answer:

2/3

Step-by -step explanation:

5 0
3 years ago
Can you pls help me it’s timed
Lerok [7]

Answer:

The median is 22

Step-by-step explanation:

6 0
3 years ago
How many solutions can a single variable linear equation contain?
sergejj [24]
If there is only one variable and it is linear, there can only be one solution. 
7 0
3 years ago
Other questions:
  • Della bought a tree seedling that was 2 1/4 feet tall. During the first year, it grew 1 1/6 Feet. After two years, it was 5 feet
    10·1 answer
  • 4x+30=3x what is x?
    9·2 answers
  • What is the greatest common factor of 14 and 22​
    8·2 answers
  • What is the coefficient in the expression 5x^2+3
    11·2 answers
  • Find the next three terms in the geometric sequence. 2,-16,128,-1024,...
    14·1 answer
  • When the elevator was out of service, Debi walked down 21 flights of stairs. She stopped to rest after every 3 flights. How many
    8·2 answers
  • What is 1/4 of 697 rounder to the nearest integer
    10·2 answers
  • In general, how does the growth of y = 4x compare to the growth of y = 4x? The function y = 4x is growing slower than y = 4x. Th
    13·2 answers
  • Which is 1/3 + 1/4?<br><br> Plz help
    5·2 answers
  • Will give brainliest need awnser urgently!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!