answer.
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
worty [1.4K]
2 years ago
14

What is the sum of the polynomials (-x^2+9)+(3x^2-11x+4)

Mathematics
2 answers:
Anarel [89]2 years ago
7 0
<h2>Hello!</h2>

The answer is:

(-x^{2}+9)+(3x^2-11x+4)=2x^{2}-11x+13

<h2>Why?</h2>

To solve the problem, we must remember how to add/subtract like terms. The like terms are the terms that share the same variable and the same exponent.

For example:

2x+3x+x^{2}=x^{2}+(2x+3x)=x^{2}+5x

We were able to add only the linear terms (terms that contains the variable x") because they were like terms: they share the same variable and the same exponent.

We need to perform the following operation between polynomials:

(-x^{2}+9)+(3x^2-11x+4)

So, calculating we have:

(-x^{2}+9)+(3x^2-11x+4)=2x^{2}-11x+13

Have a nice day!

Otrada [13]2 years ago
6 0
You add up all of the numbers with same coefficients. so that would be ( 2x^2-11x+13) bc -x^2 + 3x^2 is 2x^2, -11x stays the same because there is no other x, and 9+4 is 13 :)
You might be interested in
choose the correct word to complete the sentence below. A group of related facts that use the same number is called?
oee [108]
A fact family . . . . . . . . . 
7 0
2 years ago
Read 2 more answers
A company claims that its tablet computers have an average recharge time of 3 hours. In a random sample of these computers, the
jek_recluse [69]

Answer:

μ < 3

Step-by-step explanation:

5 0
1 year ago
Which equation represents the graphed function?
Alika [10]

Answer:

y = -1/3x +3

Step-by-step explanation:

First we need to find the slope

m = (y2-y1)/(x2-x1)

   = (2-3)/(3-0)

   -1/3

Then we know the y intercept( where it crosses the y axis)

It crosses at y=3

The slope intercept form is

y= mx+b  where m is the slope and b is the y intercept

y = -1/3x +3

5 0
2 years ago
Read 2 more answers
An auto dealership sells minivans and sedans. In January, they sold 10
igor_vitrenko [27]

Answer: They are both equal

Step-by-step explanation: 10 x 14 = 20 x 7

5 0
2 years ago
Jenna wants to open a salon and must choose a location. At Location A, she will pay $1200 per month and charge $45 per haircut.
anzhelika [568]
Profit=revenue-cost

pA(m,h)=45h-1200m

pB(m,h)=60h-1800m

Profit is the same when pA=pB so

60h-1800m=45h-1200m

15h=600m

h=40m

So 40 haircuts per month at either location results in the same profit of $600 per month.
5 0
2 years ago
Other questions:
  • The following function represents the production cost f(x), in dollars, for x number of units produced by company 1:
    13·2 answers
  • What does collinear mean
    5·2 answers
  • Byron’s income last year was $61,700. He made $48,000 at his plumbing job and had income from an apartment that he rented out. I
    15·2 answers
  • Pat had 9 flowerpots, and she wants to plant a different type of flower in each one. There are 11 types of flowers available at
    7·2 answers
  • An airplane has its auto pilot set to fly in a direction of 40 degrees at a speed of 320 mph. The wind is blowing the airplane t
    12·1 answer
  • Which of the following could be the system of nonlinear inequalities graphed below?
    13·1 answer
  • Jayden has some dimes and some quarters. He has at most 25 coins worth at least $4.60 combined. If Jayden has 7 dimes, determine
    8·1 answer
  • Electricity bills: According to a government energy agency, the mean monthly household electricity bill in the United States in
    7·1 answer
  • You had a goal to collect 50 cans for a food drive. You were able to collect 83 cans. What percent of your goal did you collect?
    13·2 answers
  • If 1/6x+2/3y=8 what is the value of 2x+8y
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!