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
balu736 [363]
2 years ago
11

Find the sum and choose the correct answer. 5n 3 + 4n 2 - 9 and -2n 3 + 7n - 5

Mathematics
2 answers:
mezya [45]2 years ago
8 0
<h2><em>Answer:</em></h2><h2><em>3</em><em>n</em><em>^</em><em>3</em><em>+</em><em>4</em><em>n</em><em>^</em><em>2</em><em>+</em><em>7</em><em>n</em><em>-</em><em>1</em><em>4</em></h2>

<em>Solution</em><em>,</em>

<em>5</em><em>n</em><em>^</em><em>3</em><em>+</em><em>4</em><em>n</em><em>^</em><em>2</em><em>-</em><em>9</em><em>+</em><em>(</em><em>-2n^</em><em>3</em><em>+</em><em>7</em><em>n</em><em>-</em><em>5</em><em>)</em>

<em>=</em><em> </em><em>5</em><em>n</em><em>^</em><em>3</em><em>+</em><em>4</em><em>n</em><em>^</em><em>2</em><em>-</em><em>9</em><em>-</em><em>2</em><em>n</em><em>^</em><em>3</em><em>+</em><em>7</em><em>n</em><em>-</em><em>5</em><em>.</em>

<em>Combine </em><em>the </em><em>like </em><em>terms,</em>

<em>=</em><em>5</em><em>n</em><em>^</em><em>3</em><em>-</em><em>2</em><em>n</em><em>^</em><em>3</em><em>+</em><em>4</em><em>n</em><em>^</em><em>2</em><em>+</em><em>7</em><em>n</em><em>-</em><em>9</em><em>-</em><em>5</em>

<em>=</em><em>3</em><em>n</em><em>^</em><em>3</em><em>+</em><em>4</em><em>n</em><em>^</em><em>2</em><em>+</em><em>7</em><em>n</em><em>-</em><em>1</em><em>4</em>

<em>hope </em><em>it</em><em> helps</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

valkas [14]2 years ago
7 0

Answer:

=  3 {n}^{3}  + 4 {n}^{2}  + 7n - 14 \\

Step-by-step explanation:

5 {n}^{3}  + 4{n}^{2}  - 9 + ( - 2 {n}^{3}  + 7n - 5) \\ 5 {n}^{3}  + 4 {n}^{2}  - 9 - 2 {n}^{3} + 7n  - 5 \\ =  3 {n}^{3}  + 4 {n}^{2}  + 7n - 14

hope this helps

brainliest appreciated

good luck! have a nice day!

You might be interested in
F(x) = -2? + 10x- 6<br> Find f(-5)
Dimas [21]

Answer:

f=−2x+8/5

Step-by-step explanation:

4 0
2 years ago
I = $60, P = $750, r = 4%, t = ?. Find the amount of time
Anuta_ua [19.1K]

Answer:

The time required to  accumulate simple interest of $ 60.00

from a principal of $ 750.00  at an interest rate of 4% per year  is 2 years.

Step-by-step explanation:

Given

  • Interest I = $60
  • Principle P =  $750
  • Interest rate r = 4% = 0.04

To determine

Time period t = ?

Using the formula

I = Prt

t = I / Pr

substitute I = $60, P = $750 and r = 0.04 in the equation

t = 60 / ( 750 × 0.04 )

t = 2  years

Therefore, the time required to  accumulate simple interest of $ 60.00

from a principal of $ 750.00  at an interest rate of 4% per year  is 2 years.

5 0
2 years ago
Find a parametric representation for the surface. the part of the plane z = x + 3 that lies inside the cylinder x2 + y2 = 9. (en
Evgesh-ka [11]
The cylinder is a clue to use cylindrical coordinates. Taking x=3\cos\theta and y=3\sin\theta, we then are forced to use z=3\cos\theta+3. So the parameterization of the intersection of the plane and cylinder is

\mathbf s(\theta)=(3\cos\theta,3\sin\theta,3\cos\theta+3)

To get the surface, we can introduce a second parameter r that "contracts" the elliptical intersection to a point. The simplest way to do this is to use

\mathbf s(r,\theta)=(3r\cos\theta,3r\sin\theta,3r\cos\theta+3)

with 0\le r\le1 and 0\le\theta\le2\pi.
7 0
2 years ago
Write the equation of the circle. A with a center A(-4,-3) and radius 5
tiny-mole [99]

Answer:

(x+4)^2 + (y+3)^2 = 5^2

Step-by-step explanation:

The equation of a circle is

(x-h)^2 + (y-k)^2 = r^2

now substitute the known values

(x+4)^2 + (y+3)^2 = 5^2

and theres your equation

4 0
3 years ago
5.241 divided by 3 please help me​
SOVA2 [1]

Hey Mate!

Your answer is

1.747

Tell me if this helps!<3

5 0
3 years ago
Read 2 more answers
Other questions:
  • the weight of 100 identical samples of a substance is 0.01 pounds. what is the weight of 10000 samples?
    9·1 answer
  • Differentiating a Logarithmic Function In Exercise, find the derivative of the function
    14·1 answer
  • The distance around the outside of someone’s property is 900 feet. The length and the width are equal. Find the dimensions
    14·1 answer
  • Express the moment of the couple acting on the rod in cartesian vector form. What is the magnitude of the couple moment?
    6·1 answer
  • Based on the model, which statements accurately compare 18 and 9?
    5·1 answer
  • NEED HELP HERE PLEASE
    15·1 answer
  • Solve the following problem algebraically: 15 = n/5.
    6·1 answer
  • 9x - y<br> - y when x=6 and y=3<br> Thank you!
    10·1 answer
  • Could someone pls help me
    12·1 answer
  • Y−3=5(x−2) what is the slope?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!