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
Gala2k [10]
3 years ago
15

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

Mathematics
1 answer:
vovikov84 [41]3 years ago
7 0

Answer:

x = 0.781 , y = -1.219

and

x = -1.281 , y = -3.281.

Step-by-step explanation:

Since both of the x terms are equal to y we can equate the x terms:-

-2x^2 = x - 2

2x^2 + x - 2 = 0

x = [-1 +/- √(1^2 - 4*2*-2) ] / 4

= ( - 1 +/- √(17)) / 4

= 0.781, -1.281.

When x = 0.781  y = 0.781 - 2 = -1.219.

when x = -1.281 , y = -1.281 - 2= -3.281.

You might be interested in
Order the numbers from least to greatest<br> √99 , 2 , 9.8
spin [16.1K]

Answer:

2, 9.8, \sqrt{99}

Step-by-step explanation:

The decimal form of \sqrt{99} is 9.949

3 0
3 years ago
Read 2 more answers
How many real number solutions does the equation have 0=5x^2+2x-12
Harman [31]
 Rearrange the equation to standard form of a quadratic equation (ax^2+bx+c=0) by switching sides: 5x^2+2x-12=0. Now, use the quadratic equation formula to solve. You should come out with x_1=sqrt61-1/5 and x_2=-1+sqrt61/5. Thus, your answer is B, or two solutions.
7 0
3 years ago
Read 2 more answers
PLS HELP ME!! this test will bring my grade up ahhh (question in picture(
weqwewe [10]

Answer:

A or D

Step-by-step explanation:

You know that triangles are Similar if they have like same angles. If too triangles are the same the 3rd one has to be too!

Hope this helped and I hope you do well on your test!! Good Luck!

*Sends good vibes* :)) <33

"You were born to be real, Not perfect.."

-SUGA-

4 0
3 years ago
Which is the simplified form of the expression ((2^-2)(3^4))^-3*((2^-3)(3^2))^2
Triss [41]

Answer:

2^36 3^48 is the correct answer

7 0
3 years ago
if 22000 pots with 15 seeds each are used in a nursery, how many total seeds, in scientific notation?
kipiarov [429]

Write the total number of seeds in scientific notation

Given:

Number of pots = 22,000

Number of seeds = 15

<em>Total number of seeds = Number of pots × Number of seeds</em>

= 22,000 × 15

= 330,000

Scientific notation is written in multiples of 10

  • Count the number of digits
  • Insert a decimal point between the first digit and other digits
  • count the number of digits after the first digits
  • multiply by 10 raise to the power of number of remaining digits after first digits

= 3.30000 × 10^5

Therefore,

the total number of seeds in

scientific notation is 3.30000 × 10^5

Read more:

brainly.com/question/10401258

7 0
3 years ago
Other questions:
  • Help me with the first question
    14·1 answer
  • X-21=6 what does x equal??
    5·2 answers
  • 4. Find the percent of decrease from 340 to 150. Round to the nearest tenth of a
    12·2 answers
  • Can there be more than one point of intersection between the graphs of two linear equations
    6·1 answer
  • What is (f - g)(x)?<br> f(x) = -3x² - 10x<br> g(x) = x2+6x
    13·1 answer
  • Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to
    9·1 answer
  • Can somebody help me with this please?
    15·1 answer
  • PLEASE HELP ME THANKS IF u do
    12·1 answer
  • Do all 4 pls it is easy
    5·1 answer
  • Find f(2) and f(3).<br> f(1) = 3<br> f(n) = 7f(n = 1)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!