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]
3 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]3 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
HELPPPPPPPPPPPPPPPP
IRINA_888 [86]

Answer:\Another way to solve a system of equations is by substitution. With this method, you are essentially simplifying one equation and incorporating it into the other, which allows you to eliminate one of the unknown variables. Consider the following system of linear equations:

Step-by-step explanation:

hope this helps!

8 0
3 years ago
Read 2 more answers
Polygons consist of line segments connected only at their endpoints. Many types of polygons exist, with varying side and angle m
aleksley [76]

Answer:

its asking for your opinion

8 0
3 years ago
TJ invested $4000 in a bond at a yearly rate of 2%. He earned $200 in interest. How long was the money invested
kow [346]

4000.00 x 2.0 = $80.00 per year x 2 years = $160.00 so 6 months would earn $40.00 taking it to the $200, so 2 yrs 6 mos.



3 0
3 years ago
Anyone has discord??????????????????
Sever21 [200]

Yorick#2033

talk to me

7 0
3 years ago
Read 2 more answers
Find the value of x in the figure.
Tresset [83]
It’s also 64 because the angles are congruent
8 0
3 years ago
Read 2 more answers
Other questions:
  • strawberries cost $2 per pound and gets 20% discount on the total cost. How much does Kate pay for the strawberries?
    9·2 answers
  • Solve by graphical method<br> X&gt;3 and y&gt;2
    6·1 answer
  • Is -6 a real, complex, pure imaginary or nonreal complex
    8·2 answers
  • Solve the system of equations below by graphing both equations with a
    9·2 answers
  • Can someone show me how to do the following problem...?<br><br> 5x^2-5x-30=0
    14·2 answers
  • The slope of the line below is -0.75. Write the equation of the line in point-
    11·1 answer
  • Pls help and pls show ur work
    5·1 answer
  • Consider this system of equations and the partial solution below.
    5·2 answers
  • Given that BD ~ BC, find m A. 54<br> B. 57<br> C. 64<br> D. 66
    12·2 answers
  • Find the slope on any given line please see attached photo
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!