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
mars1129 [50]
2 years ago
14

Find the sum of 3x² + 5x - 1 and x² - 2x -7​​

Mathematics
2 answers:
vova2212 [387]2 years ago
8 0

Answer:

4x^2+3x-8

Step-by-step explanation:

gizmo_the_mogwai [7]2 years ago
7 0

<h3>{3x}^{2}  + 5x - 1 +  {x}^{2}  - 2x - 7 \\  {3x}^{2}  +  {x}^{2}  + 5x - 2x - 1 - 7 \\  {4x}^{2}  + 3x - 8</h3>
You might be interested in
miracle is playing a board game with a friend. She needs 20 points to win. She currently has -10 points. She wants to know the d
kogti [31]

20-30=-10

[(-10+10)+10+10]=20

4 0
3 years ago
Read 2 more answers
Làm ơn hãy giúp tôi <br> (a+b)²<br> (a-b)²
marysya [2.9K]

Answer:

(a + b) ^{2}  =  {a}^{2}  + 2ab +  {b}^{2}  \\ (a - b) ^{2}  =  {a {}^{2}  - 2ab +  {b}}^{2}

Step-by-step explanation:

hopethe answer helped you :)

8 0
2 years ago
Read 2 more answers
Can any one help me
emmainna [20.7K]
I think you set up the equation like this

$2.50x+5

I hope I helped sorry if I didn't.

8 0
3 years ago
Which of the following are identities? Check all that apply.​
Hatshy [7]

Answer:

b. cos²3x - sin²3x = cos6x

if its wrong sorry

hope this helps you☺️☺️

5 0
3 years ago
Read 2 more answers
Mr. Mole's burrow lies 5 meters below the ground. He started digging his way deeper into the ground, descending 3 meters each mi
Sedbober [7]

Answer:

The slope of the equation is -3.          

Step-by-step explanation:

Given : Mr. Mole's burrow lies 5 meters below the ground. He started digging his way deeper into the ground, descending 3 meters each minute.

To find : What is the slope ?

Solution :

Let x be the number of minutes taken to dig the ground.

He started digging his way deeper into the ground, descending 3 meters each minute i.e. '-3x'

Let y is the total distance travel to dig the ground.

Mr. Mole's burrow lies 5 meters below the ground.

The equation form is y=-3x-5

Comparing with general slope form i.e. y=mx+c where m is the slope.

The slope of the equation is -3.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is 4018 divide by 82
    6·2 answers
  • The widths of two similar rectangles are 9 cm and 12 cm. What is the ratio of the perimeters? Of the areas?
    9·1 answer
  • How many​ 1-ft square tiles would it take to cover the floor of a square room that is 13 ft on each​ side?
    8·2 answers
  • Can somebody help me?
    13·1 answer
  • A +2b-2c= 1
    7·1 answer
  • Steve delivers Chinese and earns $8 an hour. He averages about $10 per hour in tips. About how much does he earn in a 35 hour we
    12·2 answers
  • Parallel lines
    13·1 answer
  • The social studies teacher wants to know whether the students in the entire school prefer a model United Nations activity or a s
    8·1 answer
  • I need to know the answer to 1/6 +1/2 =
    14·1 answer
  • -4m + 2n = 6<br> -4m + n = 8<br> solve for and x and y steps
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!