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
Ede4ka [16]
3 years ago
15

(3n³ - 5n + n²) - (-8n² + 3n³) please shawty please

Mathematics
2 answers:
elixir [45]3 years ago
8 0

Answer:

9n^2 - 5n

Step-by-step explanation:

(3n^3 - 5n + n^2) - (-8n^2 + 3n^3)

Lets open the brackets. Signs of all the terms in the bracket next to the minus sign will change.

=> 3n^3 - 5n + n^2 + 8n^2 - 3n^3

Now lets add/substract all the like terms with each other.

=> 3n^3  - 3n^3  + n^2 + 8n^2 - 5n

=> 9n^2 - 5n \: \: or \:\: n(9n - 5)

satela [25.4K]3 years ago
3 0

Answer:

Step-by-step explanation:

3n^3-5n+n^2+8n^2-3n^3\\ \\ 9n^2-5n\\ \\ or\ n(9n-5)

You might be interested in
How much money should be deposited today in an account that earns
kifflom [539]

Answer:

21,600

Step-by-step explanation:

8 0
3 years ago
The letter b represents a nonzero constant. Solve 2bx-bx= -8 for x?
zhuklara [117]

Answer:

x = -8/b

Step-by-step explanation:

2bx-bx= -8

bx = -8

Divide by b since b is nonzero

x = -8/b

3 0
3 years ago
ABC ~ ADE AC = 4, AE = 7, AD = 10, what is the length of AB? 1 3/7 2 1/2 5 5/7 17 1/2
Butoxors [25]

If the polygon or the figures are similar then it is known that the ratios of their corresponding sides and angles are proportional. In this item we can derive an equation that is,

<span>                        AC/AE = AD/AB</span>

Substituting the known values,

<span>                      4/7 = 10/AB</span>

<span>AB from the equation is equal to 70/4 or equal to 17 ½. </span>

3 0
3 years ago
Read 2 more answers
Danielle plotted 3 points from the equation y = 4x on this coordinate grid. She drew a straight line through the points. Which o
Evgen [1.6K]
3... y= 4x means 3x4=12
4 0
3 years ago
Read 2 more answers
So if a video that is 15:34 how long is it when 2 times speed
rusak2 [61]

Answer:

7:47

Step-by-step explanation:

Here are two ways of solving this:

The video will be half the time of 15:34, so you need to divide the time 15:34 by 2.

Method 1)

Use the tip. The video is 15 minutes and 34 seconds long.

Convert minutes to seconds: 15 * 60 = 900

Add 34 seconds to the 15 minutes: 900 seconds + 34 seconds = 934 seconds

The video is 934 seconds long.

Divide the total seconds by 2: 934/2 = 467

467 seconds = 420 seconds + 47 seconds = 7 minutes and 47 seconds

Answer: 7:47

Method 2)

Divide the minutes by 2 and divide the seconds by 2.

15 minutes and 34 seconds.

Divide minutes by 2: 15/2 = 7.5

Divide seconds by 2: 34/2 = 17

Now we need to add 7.5 minutes and 34 seconds.

0.5 minutes is half a minute, so it's 30 seconds.

7.5 minutes + 17 seconds =

= 7 minutes + 0.5 minute + 17 seconds

= 7 minutes + 30 seconds + 17 seconds

= 7 minutes + 47 seconds

= 7:47

Answer: 7:47

6 0
3 years ago
Other questions:
  • Solve the inequality -12≤2x-4&lt;10
    9·1 answer
  • On a quiz there are four multiple-choice questions worth 3 points each and two true/false questions
    11·2 answers
  • Which of the following shows the correct order for -1 2/5, (-1)², -1.4 repeating and (1/2)²
    12·1 answer
  • What is 9+9+9 help me
    7·2 answers
  • Tempestt graphs a function that has a maximum located at (–4, 2). Which could be her graph?
    6·2 answers
  • Erika draws a hexagon. Maria draws a pentagon. Who draws the shape with more sides? How many more sides does that shape have?​
    8·2 answers
  • A rectangular swimming
    10·1 answer
  • Figure ABCD is a kite. Find the<br> value of x.
    8·1 answer
  • Clarissa uses 8.6 pints of blue paint and white paint to paint her bedroom walls. 3/5 of this amount is blue paint, and the rest
    15·1 answer
  • Find the relation between x and y if A (1, 3) B (6, 1) is perpendicular to<br> BC, where C = (x, y).
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!