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
frozen [14]
3 years ago
8

3. The width of a rectangle is 4 feet less than the length. The area is

Mathematics
1 answer:
mina [271]3 years ago
6 0

Answer:

L = 6, w = 2

Step-by-step explanation:

Let w = width of rectangle

Let L = length of rectangle

w = L - 4

Area of rectangle = Lw

L (L - 4) = 12

L^2 - 4L = 12

L^2 - 4L - 12 = 0

(L - 6)(L + 2) = 0

L - 6 = 0

L = 6 (the other option doesn't work because dimensions can't be negative)

w = L - 4

w = 6 - 4

w = 2

Double check

A = Lw

A = 6 x 2

A = 12

It matches so we are right.

You might be interested in
HELP PLEASE!!!!!!!!!!!!!!!!!!!
Lapatulllka [165]

Answer:

C [ -1 ,1 ]

.............

8 0
3 years ago
Read 2 more answers
Nick bought t candies and divided them equally between his y friends and me. Each of us got 7 candies.
inysia [295]
<h2>Hello!</h2><h2>Let me help you.</h2>

As I understand, you need to write an equation that relates t \ and \ y. This problem will be solved using equations. The problem states:

<em>Nick bought t candies and divided them equally between his y friends and me. Each of us got 7 candies.</em>

<em />

From this statement, we know that:

t: Number of candies Nick bought.

y: Number of friends.

Since I am included in this problem, the number of people involved here can be expressed as:

y+1

Since each of us got 7 candies, then it is true that:

\frac{t}{y+1}=7 \\ \\ t=7(y+1)

<em>So t (number of candies) is a function of y(number of friends).</em>

6 0
3 years ago
what is -8x-9=-21, can someone work out the problem and show me what they did to get there answer so i can understand it?
SashulF [63]

- 8x - 9 = - 21

Add 9 to both sides:

- 8x = - 12

Divide both sides by - 8:

x = -12/-8

x = -3/-2

x = 3/2 OR 1.5

Hope this answer helps :)

6 0
3 years ago
Read 2 more answers
Use triangle ABC below to answer the question that follows:
AnnyKZ [126]

Answer: Choice 1) The sum of the angles A and B are supplementary to angle C


Why is this the answer? Because we'll use facts 2 through 4 to help prove the triangles similar. If fact 2 is true, then fact 3 leads to helping set up the congruent corresponding angles (either A = D or C = E). Fact 4 is true because all angles are congruent to themselves, and this fact is the other angle pair we need to prove the triangles similar.


We don't use fact 1 even though it's a true statement. The fact that A+B+C = 180 isn't really useful to compare across two triangles.


3 0
3 years ago
Read 2 more answers
A squirrel sits on top a 14-foot tall tree. he spies an acorn on the ground some distance away. after careful measurements, he d
sattari [20]

Answer: tangent

Step-by-step explanation:

In relation to the 74-degree angle, you have the adjacent side and the opposite side.

6 0
2 years ago
Other questions:
  • Use product rule to calculate the derivative of: 3<br><img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20" id="TexFormula1
    14·1 answer
  • Can get I help on 15-20 please or on someof them
    12·1 answer
  • Add simplify the answer to lowest terms before entering the numerator and denominator in their boxes 11/16 + 3/16
    5·1 answer
  • Best answer dets Brainliest!!!
    6·1 answer
  • Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator.
    6·1 answer
  • When Ximena commutes to work, the amount of time it takes her to arrive is normally distributed with a mean of 38 minutes and a
    15·1 answer
  • What is the value of 24 - (-6 - (5 + 8))?
    12·1 answer
  • Serenity is moving and must rent a truck. There is an initial charge for the rental plus a fee per mile driven. The total cost o
    9·1 answer
  • Pls help asap !!!!!!!
    13·1 answer
  • If x2 = 20. what is the value of x? <br>sqrt 10 <br>sqrt 20 <br>10 <br>40​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!