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
Dima020 [189]
3 years ago
8

Perform the operation. (-10x² + 9) + (8x2 – 5x + 7) HELP ASAP PLS

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
5 0

Answer:

-2x² - 5x + 16

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

(-10x² + 9) + (8x² - 5x + 7)

<u>Step 2: Simplify</u>

  1. Combine like terms (x²):                                                                                  -2x² + 9 - 5x + 7
  2. Combine like terms (Z):                                                                                   -2x² - 5x + 16
You might be interested in
Yes I know it’s to much but pleaseee...it’s due at 11 :(
Maurinko [17]
Same I don’t know , you can go online and pay someone to do it for you

8 0
3 years ago
7652 divided by 12.3
Lady_Fox [76]

Answer:

The answer to the question provided is 622.1138211.

Rounded to the nearest tenth is 622.1

3 0
3 years ago
Two angels are supplementary. The measure of the large angle is four more than three times the measure of the small angle. Find
sashaice [31]

Answer:

The measure of the two supplementary angles is

Small angle = x = 44°

Large angle = y = 136

Step-by-step explanation:

Supplementary angles are two angles whose measures add up to 180° .

Let

Small angle = x

Large angle = y

x + y = 180°.... Equation 1

The measure of the large angle is four more than three times the measure of the small angle

Hence: y = 4 + 3x

We substitute 4 + 3x for y in Equation 1

x + 4 + 3x = 180°

4x + 4 = 180°

4x = 180° - 4

4x = 176

x = 176/4

x = 44°

Solve for y

y = 4 + 3x

y = 4 + 3(44)

y = 4 + 132

y = 136°

Therefore, the measure of the two supplementary angles is

Small angle = x = 44°

Large angle = y = 136

5 0
3 years ago
The vertices of polygon ABCD are at A(1, 1), B(2, 3), C(3, 2), and D(2, 1). ABCD is reflected across the x-axis and translated 2
rjkz [21]
The vertices of polygon ABCD are at A(1, 1), B(2, 3), C(3, 2), and D(2, 1). ABCD is reflected across the x-axis and translated 2 units up to form polygon A′B′C′D′. Match each vertex of polygon A′B′C′D′ to its coordinates.Tiles
(2, 1)A′(2, -1)
(1, 1)B′<span>(-3, 4)</span>
(3, 0)C′(2, -1)
(2, 3)D′(-2, 5)

8 0
3 years ago
Read 2 more answers
Find m <br> A. 40°<br> B. 80°<br> C. 130°<br> D. 260°
alekssr [168]
The answer to this is A. 40
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which shows 9 more than x?<br> A.X +9<br> B.9. x<br> C.X-9<br> D.9x
    15·1 answer
  • Translate and solve.<br> 17. The absolute value of three times a number, n, is greater than 15.
    11·1 answer
  • 3x+7=16 can someone help me solve this
    11·1 answer
  • The speed of light is 3.0*10^8 m/s. Red light has a wavelength of 7 *10^-7 m. What is its frequency?
    6·1 answer
  • Find the 30th term of the arithmetic sequence with a first term of 4 and a comman difference of 8 ​
    6·1 answer
  • Refer to the figure and find the volume V generated by rotating the given region about the specified line.
    7·1 answer
  • Ramkin is going to flip a fair coin 1200 times
    5·2 answers
  • 2. (03.05)
    15·1 answer
  • The price of a golf club is $45.88. The state sales tax rate is 7%.
    9·1 answer
  • Mary's scarf is 64 centimeters long. How many millimeters is the length of the scarf?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!