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
love history [14]
3 years ago
7

A rectangle with area 36 square inches has a length that is 3 less than 3 times the width. Find the length and the width of the

rectangle.
Mathematics
1 answer:
OlgaM077 [116]3 years ago
4 0

Answer:

length = 9 in ; width = 4 in

Step-by-step explanation:

1) formula of the area of a rectangle

A = base x width

2) write an equation with the given informations:

w x (3w-3) = 36

3) solve the equation

-  multiply W by 3w and -3

3w^2 -3w = 36

- divide the two members by 3

w^2 - w = 12

- add up -12 at the two members

w^2-w -12 = 12 -12

w^2 - w - 12 = 0

- find two numbers whose sum is -1 and whose product is -12 and factorise the equation

(w-4)(w+3) = 0

- find the two solutions

w-4 = 0

w = 4

w+3 = 0

w = -3

4)remember that a length can’t be negative.

w = 4 is the only solution

5) find the length

4x3 - 3 = 9

You might be interested in
PLEASE HELP I AM STRUGGLING ON THIS
givi [52]

Answer:

(1, -5) or x=1, y=-5

Step-by-step explanation:

Hope this helps!

7 0
2 years ago
If an regular interior angle of a regular polygon is 140 degrees, how many sides does the polygon have and I need the work
torisob [31]

Answer:

9 sides

Step-by-step explanation:

exterior angle + interior angle = 180° , so

exterior angle + 140° = 180° ( subtract 140° from both sides )

exterior angle = 40°

The sum of the exterior angles of a polygon = 360°

Dividing sum by the measure of 1 exterior angles gives number of sides

number of sides = \frac{360}{40} = 9

8 0
2 years ago
How can you rewrite simple rational expressions in different forms using long division?
zalisa [80]
Step 1: Factor both the numerator and denominator of the fraction. Step 2: Reduce the fraction. Step 3: Rewrite any remaining expressions in the numerator and denominator. Step 1: Factor both the numerator and denominator of the fraction.
3 0
3 years ago
What is the value of 6 in 70,681? Explain how you know.
Dafna11 [192]

Answer:

it's 100

Step-by-step explanation:

70000

0000

600

80

1

I don't know if you understand

6 0
1 year ago
Help me out please guys
kolbaska11 [484]

Answer:

The answer is D,  g(x)=-2^x

Step-by-step explanation:

By graphing each one in a graphing tool like Desmos, you can determine which one it is.

If your looking for an actual explanation on how it is found, I can't really help you on that one.

4 0
3 years ago
Other questions:
  • Ted needs 2500 metres of lighting cable for a job. How many kilometres of lighting cable is this?
    6·2 answers
  • What is 4 radians converted to degrees? If necessary, round your answer to the nearest degree.
    6·2 answers
  • What is the answer ms.weldon
    6·1 answer
  • 19. Tom has 30 coins with a value of $3.30. If they are all nickels and quarters, how many of each kind of coin does
    15·1 answer
  • Use the number line to find whether the two numbers are equal. write equal or not equal 4/4 and 1
    14·1 answer
  • The spread of data set X is greater than the spread of data set Y, and the data sets are normally distributed. Which statement i
    5·2 answers
  • Winning the jackpot in a particular lottery requires that you select the correct five numbers between 1 and 25 and, in a separat
    14·2 answers
  • What are the solutions to the quadratic equation below?
    12·2 answers
  • MARKING AS BRAINLIEST!!!
    13·1 answer
  • Select from the drop-down menus to correctly complete the statement. The expressions 2.72−2 and 10.6÷2−0.1 ​ should be joined by
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!