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
gizmo_the_mogwai [7]
3 years ago
14

A rectangle has a height of 3n^2 and a width of 4n^2-5n-1.

Mathematics
1 answer:
Galina-37 [17]3 years ago
5 0

Answer:

A = 12n^4-15n^3-3n^2

Step-by-step explanation:

The dimensions of a rectangle are length and breadth/width

Here we are given height . Assuming it to be one of the side of the rectangle , we will do the further calculation

Hence one side is

side 1 = 3n^2

And the other side is

Side 2 = 4n^2-5n-1

The area of rectangle = side 1 x side 2

A=3n^2 \times (4n^2-5n-1)

A=3n^2 \times 4n^2-3n^2 \times 5n-3n^2 \times 1

A=3 \times 4 \times n^2 \times n^2- 3 \times 5 \times n^2 \times n - 3n^2

A = 12n^4-15n^3-3n^2

Hence area can be given as expression

A = 12n^4-15n^3-3n^2

You might be interested in
Someone! Please help me!
marusya05 [52]
The lines are parralel

4 0
3 years ago
Read 2 more answers
What is 38,800 rounded to the nearest hundred mark all that apply?
SashulF [63]
38,800 is the answer

4 0
3 years ago
*25 points!*
mariarad [96]
Pick 2 pairs of equations t<span>hen use addition and subtraction to eliminate </span>the same variable<span> from both pairs of equations then it is left with 2 variables 
</span>Pick two pairs
<span><span>4x - 3y + z = - 10</span><span>2x + y + 3z = 0
</span></span>eliminate the same variable from each system
<span><span>4x - 3y + z = - 10</span> 
<span>2x + y + 3z = 0</span> 

<span>4x - 3y + z = - 10</span> 
<span>-4x - 2y - 6z = 0</span> 

<span>-5y - 5z = - 10</span> 

<span>2x + y + 3z = 0</span> 
<span>- x + 2y - 5z = 17</span> 

<span>2x + y + 3z = 0</span> 
<span>-2x + 4y - 10z = 34</span> 

<span>5y - 7z = 34
</span></span>Solve the system of the two new equations:
<span><span>-5y - 5z = - 10</span> 
<span>5y - 7z = 34</span> 

<span>-12z = 24</span> 
which is , <span>z = - 2</span> 

<span>-5y - 5(- 2) = - 10</span> 
<span>-5y = - 20</span> 
wich is , <span>y = 4
</span></span>substitute into one of the original equations
<span>- x + 2y - 5z = 17</span> 
<span>- x + 2(4) - 5(- 2) = 17</span> 
<span>- x + 18 = 17</span> 
<span>- x = - 1</span> 
<span>x = 1</span> 
<span>which is , </span><span>(x, y, z) = (1, 4, - 2)</span><span> 
</span>Does 2(1) + 4 + 3(- 2) = 0<span> ? Yes</span><span>

</span>
7 0
3 years ago
What is the intial value and rate of change in this graph. please explain step by step!!!!!
WARRIOR [948]

The initial value of the graph is where x = 0. Thus, in this case, the initial value is 12.


The rate of change of the graph is essentially the slope of the graph. In this case, we can use the slope formula:

\dfrac{y_2 - y_1}{x_2 - x_1}

  • (x_1, y_1) and (x_2, y_2) are points on the graph

Let's use two points from the chart to find the slope:

m = \dfrac{30 - 21}{2 - 1} = 9


In this case, the rate of change of the graph is 9.

4 0
3 years ago
Read 2 more answers
when all the kids who tried out for soccer were divided into teams of 15 players, there were exactly eight teams. how many kids
seropon [69]
You would multiply 15 ×8= 120 kids tried out
5 0
3 years ago
Other questions:
  • Write 3 2/3 as improper fraction
    8·2 answers
  • Data collected in a mall recorded the
    5·1 answer
  • What is the equation for area of a circle
    12·1 answer
  • What is the volume of the cone in the diagram? height:18 radius:10
    13·2 answers
  • After earning interest, the balance of an account is $420. The new balance is 7/6bof the original balance. Write an equation tha
    15·1 answer
  • True or false the product of a mixed number between four and five and affection between zero and one is always less than four
    5·2 answers
  • A chess club has 24 members, of which 1 is a male and the rest are females.
    6·1 answer
  • Which similarity postulate or theorem let’s you conclude that JKL = MNO?
    12·1 answer
  • What are the sales taxes on the state level collected for
    14·1 answer
  • A graph shows the horizontal axis numbered 4 to 16 and the vertical axis numbered 4 to 12. points and a line show an upward tren
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!