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
juin [17]
2 years ago
11

What are the solutions of this quadratic equation? x + 2x=-2

Mathematics
2 answers:
olganol [36]2 years ago
6 0

Answer:

-\frac{2}{3}

Step-by-step explanation:

The first step is to combine like terms. x + 2x = 3x, the equation is now 3x= -2

Now divide 3 on both sides to get x = -\frac{2}{3} or -0. repeating 6

natta225 [31]2 years ago
5 0

Answer:

2x=2

Step-by-step explanation:

easy

You might be interested in
Cobalt-56 has a decay constant of 8.77 × 10-3 (which is equivalent to a half life of 79 days). How many days will it take for a
sweet-ann [11.9K]
As I read this one, is just a decay exponential equation... so

A = P(1 + r)ᵗ   where "t" is days passed. . hmm in this case is decay, so negative rate  A = P(1 - r)ᵗ, and the decimal amount would be 0.00877 for the rate

62% of P, the original value, is just 0.62P, now... if we hmm take P as just 1, it could be any amount, but 62% of 1,000,000 is just 62% of 1 times 1,000,000

so, for the sake of comparing it with a percentage, 1 will do

\bf 0.62P=P(1-0.00877)^t\implies P=1\implies 0.62=(1-0.00877)^t
\\\\\\
ln(0.62)=ln[(1-0.00877)^t]\implies ln(0.62)=t\cdot  ln(1-0.00877)
\\\\\\
\cfrac{ln(0.62)}{ln(0.99123)}=t
7 0
3 years ago
Help me please and thx
Olenka [21]
Y = kx, so y/x is constant

you want y such that
y/12 = -2/-8
3 0
2 years ago
I need help solving |5+2j|=9 please
V125BC [204]

5 + 2j = 9 \\ j = 2
5 + 2j =  - 9 \\ j =  - 7
3 0
2 years ago
I need help someone help me​
Dennis_Churaev [7]

Answer: 42 pop tunes

Step-by-step explanation:

35/5=7

6*7=42

5 0
2 years ago
Read 2 more answers
Using faucet P, you can fill a sink in 10 minutes. Faucet Q takes only 8 minutes to fill the same sink. How long will it take to
nevsk [136]

It would take 4.44 minutes to fill the sink using both faucets P and faucet Q together

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let t represent the time it takes to fill the sink using both faucets together, hence:

(1/10 + 1/8)t = 1

t = 4.44 minutes

It would take 4.44 minutes to fill the sink using both faucets P and faucet Q together

Find out more on equation at: brainly.com/question/2972832

#SPJ1

4 0
1 year ago
Other questions:
  • Work out the following, giving your answer to the simplest form 5 3/5/2 2/3
    9·1 answer
  • Choose a number between 61 and 107 that is a multiple of 3, 6, and 9
    15·1 answer
  • Dividing polynomials using long division: <br> (9x^2-38x-31)/(x-5)
    13·1 answer
  • 35% off a phone = £78 how much was the phone before the discount prices?
    9·1 answer
  • The circumference of a redwood tree trunk is 18π ft, and it is 100 ft tall. What is the approximate volume of the redwood tree t
    13·1 answer
  • Two less than three times a number is between -11 and 1. solve.
    5·1 answer
  • Using appropriate properties, find −
    9·1 answer
  • Please help me with this! No links or files please. I'm using a school computer and it doesn't allow it.
    8·1 answer
  • Explain what a ratio is in the easiest way possible​
    10·2 answers
  • 9. What is the volume of the triangular prism<br> below?<br> 5cm<br> 3cm<br> 4cm<br> 3cm
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!