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
Bumek [7]
3 years ago
13

Check all of the following that are solutions to the system shown below.

Mathematics
1 answer:
loris [4]3 years ago
5 0
From second equation y = -2-x

Plug this into the first equation:-

- 2 - x = -x^2 - x + 2

x^2 + x - 2 - 2 - x = 0

x^2 - 4 = 0

x^2 = 4

x + +/- 2

Plug these values into x + y = -2 :-
x = 2:- 
2 + y = -2   

so y = -4 

so one solution is (2,-4)

Now try x = -2

- 2 + y = -2

y = 0 

so the second solution is ( -2 , 0)

So A and C  are correct
You might be interested in
What’s the average of the following set of numbers ( 7,5,4,9)
Eduardwww [97]

Answer:

6.25

Step-by-step explanation:

We\ are\ given:\\Observations\ in\ the\ Set=(7,5,4,9)\\ As\ we\ know\ that,\\ Average\ or\ interchangeably\ mean=\frac{Total\ Sum\ of\ observations }{Total\ no.\ of\ observations} \\Here,\\Total\ sum\ of\ the\ observations=7+5+4+9=25\\Total\ number\ of\ observations=4\\Hence\ here,\\Mean/Average=\frac{25}{4}=6.25

6 0
3 years ago
Sally ran 2 % miles in 12 hour. What is her<br> speed in miles per hour?
andreev551 [17]

Answer:

Step-by-step explanation:

if you're saying she ran .2 miles in 12 hours

then she ran .016 miles per hour

if you're saying she ran 2 miles in 12 hours,

then she ran 1/3 mile per hour or 0.3333 miles per hour

7 0
3 years ago
I will give brainlest answer quickly please
zvonat [6]
Sine = opposite / adjacent.

since the opposite and adjacent lines are used, you need to use some to solve for x.

the answer is sine.
7 0
3 years ago
Read 2 more answers
On Wednesday, 30 students went to after school tutoring. On Thursday, 6 students went. What is the percent decrease in the numbe
Y_Kistochka [10]
Hmm, I believe the answer is 80%. 
It is a decrease.
30 - 6 = 24. 
24/30 = 80% decrease from Wednesday. 

6 0
3 years ago
The side lengths 30, 41, and 70 can form a triangle.
True [87]
A = 30
B = 41
C = 70

A < B + C
30 < 41+70 ==> 30 < 111 (TRUE)

B < A + C ==>
41 < 30 + 70 ==> 41 < 100 (TRUE)

C < A+B
70 < 30 + 41 ==> 70 < 71 (TRUE)

Yes, can!
3 0
3 years ago
Other questions:
  • What is the median of the data set? 24, 2, 13, 12, 2, 5, 10, 18
    8·1 answer
  • Given that the value of b can never be equal to -1, determine if the equations are intersecting, parallel, or coincident.
    5·1 answer
  • What is the value of x?<br> Enter your answer in the box.<br><br> x=
    10·1 answer
  • Find the value of x that makes m||n​
    6·1 answer
  • 10-[5-{6+2 (7-7-4)}]​
    6·2 answers
  • An angle measures 150° more than the measure of its supplementary angle. What is the measure of each angle?
    10·1 answer
  • Help me please!!! I will give Brainly if correct!
    9·2 answers
  • Draw the graph of the given equation. y = 1.7x<br><br> Theres a graph
    15·2 answers
  • Point E is located at (2, −3), and point F is located at (−2, −1). Find the y-value for the point that is 3 over 4 the distance
    12·1 answer
  • Solve for the variable: 4+3(x+22)=5x-10
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!