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
Snezhnost [94]
3 years ago
8

What are the solutions of the following system? -2x^2 + y=-5 y=-3x^2+5

Mathematics
2 answers:
Ray Of Light [21]3 years ago
8 0

Answer:

c

Step-by-step explanation:

Doss [256]3 years ago
5 0
\begin{cases}-2x^2+y=-5\\y=-3x^2+5\end{cases}\\\\\\
-2x^2+(-3x^2+5)=-5\\\\
-2x^2-3x^2+5=-5\quad|-5\\\\-5x^2=-10\quad|:(-5)\\\\x^2=2\\\\
\boxed{x=-\sqrt{2}\qquad\vee\qquad x=\sqrt{2}}\\\\\\
y=-3x^2+5\qquad\vee\qquad y=-3x^2+5\\\\
y=-3(-\sqrt{2})^2+5\qquad\vee\qquad y=-3(\sqrt{2})^2+5\\\\
y=-3\cdot2+5\qquad\vee\qquad y=-3\cdot 2+5\\\\
y=-6+5\qquad\vee\qquad y=-6+5\\\\
\boxed{y=-1\qquad\vee\qquad y=-1}\\\\\\
\begin{cases}x=-\sqrt{2}\\y=-1\end{cases}\qquad\vee\qquad\begin{cases}x=\sqrt{2}\\y=-1\end{cases}

Answer C.
You might be interested in
The graph shows how many bottles a machine caps in a certain number of seconds.
devlian [24]

Answer:

The machine caps 900 bottles in 45 seconds

Step-by-step explanation:

15/300 is equal to 45/900

6 0
3 years ago
18 is 240% of what? basic percent equation ...?
pshichka [43]
18 = (240/100) x what;
what = 18 x (100/240);
what = 1800/240;
what = 7.5;
6 0
2 years ago
Read 2 more answers
What is the critical path and minimum prep time in order to host a party?
Hoochie [10]

Answer:

all i know is that number #2 is A

adding it all up is hard to figure out but #2 will show you that lay out so it mite be easier but i need help on this as well

Step-by-step explanation:

6 0
3 years ago
Simplify. -10m+2m^4-13m-20m^4
Ulleksa [173]
First one:

you can add -10m and -13m but you can't add -10m and 2m^4 becuase the powers aren't the same so

when adding the like terms
look at the:
powers, (x^3 adds with x^3)
placehloder letter (x adds with x and y adds with y and so on)

-10m+2m^4-13m-20m^4
powers: m^1 and M^4
placeholders: all m


add
-10m-13m+2m^4-20m^4
-23m-18m^4




second one:
when multiplying exponents, you add with like
so if you multipliy
x^2yz^3 times x^4y^2z^2 thne you would get x^6y^3z^5
when multiply with coeficients
2x^2yz^3 times 4x^4y^2z^2=8x^6y^3z^5
so using associative property a(bc)=(ab)c
2/3 times p^4 times y^3 times y^4 times s^5 times 6 times p^2 times s^3
group like terms

(2/3 times 6) times (p^4 times p^2) times (y^3 times y^4) times (s^5 times s^3)
(4) times (p^6) times (y^7) times (s^8)
4p^6y^7s^8

8 0
3 years ago
What is 8777 divided by 456​
zimovet [89]
Your answer is 19.25.
8 0
3 years ago
Other questions:
  • Tammy gives 45 stamps to her 9 friends. She shares them equally among her friends. Write an expression to match the words. How m
    10·2 answers
  • Rex's puppy is 5 years younger than his other dog. If the other dog is x years old, what is an expression for the puppy's age?
    13·2 answers
  • Please help! In a _ IRA, the contributions are taxable when deposited, but the money is
    15·1 answer
  • Evaluate b/a−1.2 when a=4 and b=12
    12·1 answer
  • The circumference of a circle is 6.4mm.
    13·1 answer
  • Help please & Thankyouu if you don’t mind would really appreciate it!
    9·1 answer
  • Sorry for asking a lot but could you all help me with 15-23? It would mean a lot. I stayed up till 4:00 am and got no sleep so I
    5·1 answer
  • Question in picture attached
    13·1 answer
  • Benita spent 25% of her money on new shoes. The
    8·1 answer
  • Describe how to create a line of best fit
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!