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
jolli1 [7]
3 years ago
7

What is the simplified form of this expression? (-3x2 + 2x − 4) + (4x2 + 5x + 9)

Mathematics
2 answers:
olga2289 [7]3 years ago
3 0

Answer:

<em><u>I</u></em><em><u> </u></em><em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em><em><u>you</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

olya-2409 [2.1K]3 years ago
3 0

Answer:

\large \boxed{\sf \  \  x^2 + 7x + 5 \ \ }

Step-by-step explanation:

\mathrm{\sf (-3x^2  + 2x -4) + (4x^2  + 5x + 9)}

Remove brackets.

\large{\sf -3x^2  + 2x -4 + 4x^2  + 5x + 9}

Group like terms.

\large{\sf -3x^2 + 4x^2 + 2x  + 5x + 9  -4}

Combine like terms.

\large{\sf x^2 + 7x + 5}

You might be interested in
How do I solve for the missing length? Please explain!! I’m struggling
REY [17]
Let call it x 
x/4=4/2 
->x=8
5 0
3 years ago
9. What is the tan(90-x)?
Aleonysh [2.5K]

\\ \sf\longmapsto tanx=\dfrac{Perpendicular}{Base}

\\ \sf\longmapsto tanx=\dfrac{4}{3}

\\ \sf\longmapsto x=tan^{-1}(4/3)

\\ \sf\longmapsto x=53°

\\ \sf\longmapsto tan(90-x)

\\ \sf\longmapsto cotx

\\ \sf\longmapsto cot53

\\ \sf\longmapsto \dfrac{3}{4}

\\ \sf\longmapsto 0.75

6 0
2 years ago
Read 2 more answers
Use the formula for computing future value using compound interest to determine the value of an account at the end of 6 years if
nadezda [96]

Answer: the value of the account at the end of 6 years is is $8577

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1+r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

P = 6000

r = 6% = 6/100 = 0.06

n = 4 because it was compounded 4 times in a year.

t = 6 years

Therefore,.

A = 6000(1+0.06/4)^4 × 6

A = 6000(1+0.015)^24

A = 6000(1.015)^24

A = $8577

5 0
3 years ago
Explain how to plot the point (3, –7) on the coordinate plane.
Reil [10]
Coordinates are written in the form (x,y), x being a certain length along the horizontal x axis and y being a certain height along the vertical y axis. Positive y numbers are in the top half of the plane and negative y numbers are on the bottom. Positive x numbers are on the right side of the plane and negative x numbers are on the left. Therefore, (3,-7) would be 3 across to the right from the origin (where the x and y axes intersect) at (3,0) and 7 downwards from that point to (3,-7).
5 0
2 years ago
Read 2 more answers
90 - 15 x 12 divided 6 Plz help! I’ll give some points!
PilotLPTM [1.2K]
I believe it’s 900. Yeah, I think the answer is 900.
3 0
3 years ago
Read 2 more answers
Other questions:
  • An inscribed angle in a circle measures 16°. What is the measure of the intercepted arc it creates?
    7·2 answers
  • Help pleaseeeeeeeeeee​
    12·1 answer
  • A house painter charges $14 per hour for the first 45 hours he works, time and a half for the 10 hours after that, and double ti
    5·1 answer
  • What is 103 plus (-46) – (-32)
    7·2 answers
  • A map scale reads: 2 inches = 25 miles. Which distance does 6 inches represent? 200 miles 75 miles 150 miles 100 miles Bene​
    6·1 answer
  • 0.4x - 5 = 0.08 + 3 plz
    14·1 answer
  • He lowest temperature on May 15 is 2 3 as warm as the warmest temperature on May 15. The lowest temperature on May 15 is 60?F. W
    6·1 answer
  • What can you say about the end behavior of the function f(x)=log2(4x+8)+16
    5·2 answers
  • In 2006, the population of Tewksbury, Rhode Island was 25,000, and it was growing at an annual rate of 2.2%.
    10·1 answer
  • Matthew and Anthony each have a video game collection. The number of video games in Matthew’s collection can be represented by x
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!