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
expeople1 [14]
3 years ago
11

Which of the following is a solution of x2 + 5x = −2? (2 points) 5 plus or minus the square root of 33 divided by two. 5 plus or

minus the square root of 17 divided by two negative 5 plus or minus the square root of 33 divided by two. negative 5 plus or minus the square root of 17 divided by two.
Mathematics
2 answers:
Delicious77 [7]3 years ago
5 0
The easiest way it to solve it.
{x}^{2}  + 5x + 2 = 0
You have
\rho = 25 - 4 \times 1 \times 2 = 17
Thus
x =  \frac{ - 5 \pm \sqrt{17} }{2}
PtichkaEL [24]3 years ago
3 0

Answer:

x=\frac{-5+\sqrt{17}}{2} and x=\frac{-5-\sqrt{17}}{2}

Step-by-step explanation:

x^2 + 5x = -2

To solve for x, make right hand side 0

Add 2 on both sides.

x^2 + 5x +2=0

Apply quadratic formula to solve for x

a=1, b=5, c= 2

x=\frac{-b+-\sqrt{b^2-4ac}}{2a}

Plug in the values and find out x

x=\frac{-b+-\sqrt{b^2-4ac}}{2a}

x=\frac{-5+-\sqrt{5^2-4(1)(2)}}{2(1)}

x=\frac{-5+-\sqrt{17}}{2}

x=\frac{-5+\sqrt{17}}{2} and x=\frac{-5-\sqrt{17}}{2}

You might be interested in
What is 78 divided by 3is in long sovision
Xelga [282]
    26
3<span>⟌78
   -6
-------
    18
   -18
-------
      0

</span>
6 0
3 years ago
Danielle needs to walk three miles, if she wants to reach her destination in 45 minutes (3/4 hour), how fast does she need to wa
GaryK [48]

1 mile per every 15 minutes

or 4 mph

5 0
2 years ago
Hello, please help me with this as well, but show me example how you worked it out?<br><br> 33 + - 5
ANTONII [103]

Answer: 28

Step-by-step explanation: A positive (+) and a negative (-) together make it a negative (-) which takes the positive away (+) making it 33 - 5 = 28

4 0
2 years ago
Read 2 more answers
Help could it be any two integers?
Novosadov [1.4K]

Yes, as long as it's between the two numbers

51) -4 and 1

52) -1 and -3

53) -9 and -10

5 0
2 years ago
A. 48 square centimeters
NARA [144]

Answer:48

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Draw the graph of the equation: 2(x–y)+3y=4
    9·1 answer
  • -x+4(x+3)=-12<br>is this never true or always true
    13·1 answer
  • Ax=b(c+x) make x the subject of the formula
    6·1 answer
  • Which one of these is x please help
    9·1 answer
  • Drag each factor to the correct location on the image.
    11·1 answer
  • Find the volume of a pyramid with a square base, where the perimeter of the base is 7.4 ft and the height of the pyramid is 8.1
    9·1 answer
  • What is the interest rate $2,200 at 7.5% for 3 1/4 years
    9·1 answer
  • What transformation takes the graph of g(x) = x2 – 5 to the graph of<br> h (x) = x² – 1
    13·1 answer
  • Select TWO expressions that contain a coefficient of 4.
    13·1 answer
  • PLZ HELP !!! THIS TEST IS VERY IMPORTANT!!!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!