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
MrRissso [65]
3 years ago
13

Can you please walk me through how to simplify this? 3x^2 – 5x^2 +4x^2

Mathematics
2 answers:
dmitriy555 [2]3 years ago
8 0

Answer: = 2^{2}

Step-by-step explanation:

First, Combine Like Terms:

= 3x^2 + −5x^2 + 4x^2

=(3x^2+ −5x^2 +  4x^2)

=2x^2

* Hopefully this helps:) Mark me the brainliest:)!!

<em>~ 234483279c20~ </em>

fredd [130]3 years ago
5 0

Answer:

2x^2

Step-by-step explanation:

We could factor x^2 out of all three terms, as follows:

x^2(3 - 5 + 4), or x^2(2), or 2x^2.

You might be interested in
F(x) = x3 + 6x2 – x<br><br><br> f(x) = 30?
xxMikexx [17]

Answer and Step-by-step explanation:

The answer is 2 (which is equal to x).

If you were to plug 2 in to the function, the result if 30.

x^{3}+ 6x^{2} -x\\\\\\\\(2)^3+6(2)^2 - 2 = 30 = f(2)

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

7 0
2 years ago
PLZ HELP, WILL GIVE BRAINLIEST
guajiro [1.7K]

Answer:

x = C, 35

Step-by-step explanation:

This involves two steps. First, you have to know that all the angles of a triangle add up to 180. So the first thing we do is find the angle of the whole red part. 180 - 73 - 51 = 56. Then, we have that one of the angles near it is 21 and the other angle is x. To find x, we do 51 - 21 = 35. Therefore, 35 = x.

Thanks for brainliest! :D

6 0
3 years ago
Question a) Compare the Variability of Expenditure of Families in Two Towns given as follows: Number of families Expenditure (Ru
Karolina [17]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

Number of families __________Expenditure

______midpoint (x) ____Town A __Town B

21-30 __25.5____________3 _______2

31-40 __35.5____________61 ______14

41-50 __45.5___________132 _____ 20

51-60 __55.5__________ 153 ______27

61-70 __65.5__________ 140 ______ 28

71-80 __75.5___________ 51 _______ 7

81-90 __85.5___________ 2 _______ 2

The variability is the variance and standard deviation :

The variance (s):

√Σ(x - m)²/Σf(x)

Town A:

m = Σ(X * f(x)) / Σf ; Σf = 542

Σ x * f(x) = (25.5*3) + (35.5*61) + (45.5*132) + (55.5*153) + (65.5*140) + (75.5*51) + (85.5*2)

= 29931 / 542

= 55. 22

Σf(x - m)² / Σf - 1 = [3(25.5-55.22)^2 + 61(35.5-55.22)^2 + 132(45.5-55.22)^2 + 153(55.5-55.22)^2 + 140(65.5-55.22)^2 + 51(75.5-55.22)^2 + 2(85.5-55.22)^2] / 541

= 76458. 4928 / 541

Variance = 141.32808

Standard deviation = √variance

Standard deviation = √141.32808

Standard deviation = 11.89

TOWN B:

m = Σ(X * f(x)) / Σf ; Σf = 100

Σ x * f(x) = (25.5*2) + (35.5*14) + (45.5*20) + (55.5*27) + (65.5*28) + (75.5*7) + (85.5*2)

= 5490 / 100

= 54.90

Variance :

Σf(x - m)² / Σf - 1 = [2(25.5-54.90)^2 + 14(35.5-54.90)^2 + 20(45.5-54.90)^2 + 27(55.5-54.90)^2 + 28(65.5-54.90)^2 + 7(75.5-54.90)^2 + 2(85.5-54.90)^2] / 99

= 16764 / 99

= 169.33

Standard deviation = √variance

Standard deviation = √169.3333

Standard deviation = 13.013

From the result above, Town A has lesser variability than Town B due to the slightly lower variance and standard deviation values.

8 0
3 years ago
A boy purchased​ (bought) a​ party-length sandwich 51 in. long. He wants to cut it into three pieces so that the middle piece is
shepuryov [24]

Answer:

Step-by-step explanation:

we have a 51 in sandwich

let a piece be x

we have x= shorter piece

another piece is x+6

another piece (x+6)-9=x-3

x+x+6+x-3=51

3x=51-3

3x=48

x=48/3=16

x=16, longer piece is 16+6=22, shorter piece =10

6 0
2 years ago
Select the correct answer.
masha68 [24]

Answer:

what is your question here can you be more specific?

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Brittany is sell car magnets. She purchases them for $7.50 each and marks up the price by 30%. How much is Brittany planning to
    14·2 answers
  • A rectangular wall measures 1620cm by 68cm. Estimate the area of the wall.
    7·1 answer
  • Marcus rode 1-1/4 miles to get from his house to his friends house he rode another 1/8 mile to get from his friends house to the
    13·1 answer
  • Explain how to find 4x80
    14·2 answers
  • "From a standard deck of cards, find the number of different 5-card hands that are made up of 3 spades and 2 diamonds"
    12·1 answer
  • (6y-10) °+ (6y+10) °
    15·1 answer
  • Solve for X and determine the measure of each angle.<br> X<br> (x - 35)<br> X<br> (2x - 75°)
    11·2 answers
  • It took pearl 8 games to score 30 points. At this rate how many games will it take for her to score 45 points
    8·1 answer
  • Find the distence between each pair points (-4,-1) (-3,3)​
    15·2 answers
  • The temperature on Sunday was 82 degrees Fahrenheit. On Wednesday the temperature rose 3°F. Find the percent of increase. Round
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!