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
Zinaida [17]
3 years ago
5

The length of a rectangle is 3 cm longer than its width.

Mathematics
1 answer:
pochemuha3 years ago
7 0

Answer:

108 cm²

Step-by-step explanation:

Area of a rectangle, A = length, l × width, w

Perimeter of a rectangle = (2 × length) + (2 × width)

42 cm = 2l + 2w

<em>but</em><em> </em>length = w + 3cm

42 cm = 2(w + 3cm) + 2w

42 cm = 2w + 6cm + 2w

42 cm = 6cm + 4w

4w = (42 - 6) cm

4w = 36 cm

》w = 9cm

》l = w + 3cm = 9cm + 3cm

l = 12 cm

Area = 12 × 9 = 108 cm²

You might be interested in
In a linear regression model, the variable that is being predicted or explained is known as _____________. It is denoted by y an
Andreyy89

Answer:

<h3>"In a linear regression model, the variable that is being predicted or explained is known as <u>_dependent variable</u> It is denoted by y and is often referred to as the response variable".</h3>

Step-by-step explanation:

Given that "In a linear regression model, the variable that is being predicted or explained is known as <u>dependent variable</u> It is denoted by y and is often referred to as the response variable".

  • Because linear regression models for variables are used to explain or predict the relationship between two variables.
  • The variable in the given model that is being predicted is called the dependent variable.
7 0
3 years ago
Please solve the problem below. Which is the correct answer?
Ivanshal [37]
I’m guessing A? Sorry if it’s wrong!
7 0
3 years ago
Solve for x . x/2 + 1.1= -2.1
raketka [301]

Answer: x = 1.6

Step-by-step explanation:

Start by Identifying what you need to keep, in this case that would be X. In order to solve for x, you would need to get rid of any co-efficients. (example: +1.1) To get rid of them, you have to do the opposite action of what it's doing to the equation. (subtraction)

1.1- (-2.1) = 3.2 (if you subtract a negative, it turns positive/ you add) leaving you with x/2 = 3.2.

Now that we have our coefficient out the way, we have to get rid of the division so we can <u>only</u> solve for x. We do that by dividing the remainder of the equation by 2

3.2/2 = 1.6

Leaving us with the answer, x = 1.6

8 0
3 years ago
In a 45-45-90 right triangle, what is the ratio of the length of one leg to the
balandron [24]
A 1:12 is the answer for this question
5 0
3 years ago
2(z-3)<br><img src="https://tex.z-dn.net/?f=2%28z%20-%203%29%20%5Cgeqslant%205" id="TexFormula1" title="2(z - 3) \geqslant 5" al
Alenkinab [10]

Answer:

2z-6

Step-by-step explanation:

2(z-3)

2(z)-2(3)=2z-6

3 0
3 years ago
Other questions:
  • 6. During an independent research, 2500 randomly selected people were interviewed whether they visit their dentist for a regular
    12·1 answer
  • In a city of 80,000 people there are 30,000 people under 25 years of age. What percent of the population is under 25 years of ag
    12·2 answers
  • logs are stacked in a pile on the bottom row and 15 on the top row . there are 10 rows in all with each row having one more log
    6·2 answers
  • A sphere and a cylinder have the same radius and height. The volume of the cylinder is 18 cm^3. What is the volume of the sphere
    8·2 answers
  • Solve for r: 4r - 9&gt;7<br><br> r&gt;1/2<br><br> r&gt;5<br><br> r&gt;4<br><br> r&gt;1/4
    13·1 answer
  • What’s the easiest way to find Lcm of lots of numbers that don’t go into each other?
    5·2 answers
  • What is the area of a circular wading pool with a radius of 50cm
    5·1 answer
  • What is the area of triangle ABC?
    15·1 answer
  • What is the measure of angle XYZ?
    11·2 answers
  • Natalie's meal at Fresh Catchery cost $26.02, not including tip. If Natalie wants to leave a 24% tip, how much should she pay? R
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!