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
arsen [322]
3 years ago
12

2x squared + 9x=-5 i need to solve for x

Mathematics
1 answer:
In-s [12.5K]3 years ago
3 0
2x^2+ 9x=-5 \\ \\2x^2 + 9x+5 =0 \\\\a=2, \ \ b=9 , \ \ c=5 \\\\\Delta =b^2-4ac = 9^2 -4\cdot 2\cdot 5 =  81-40=41 \\ \\x_{1}=\frac{-b-\sqrt{\Delta} }{2a}=\frac{-9-\sqrt{41}}{2\cdot 2 }=\frac{-9-\sqrt{41}}{ 4 }\\\\ x_{2}=\frac{-b+\sqrt{\Delta} }{2a}=\frac{-9+\sqrt{41}}{2\cdot 2 }=\frac{-9+\sqrt{41}}{4 }
You might be interested in
Plz help this one is difficult
attashe74 [19]

Answer:

its the second one -3(x-y)

6 0
3 years ago
Read 2 more answers
Hhheleppppp urgggeenttt
tekilochka [14]
They intercept at (-1,5)
6 0
3 years ago
WILL GIVE BRAINLIESTT!!
djyliett [7]

Answer:

y =   {e}^{3}

Step-by-step explanation:

f(x) =  {e}^{3x}  \\  \\ plug \: x = 1 \\  \\ f(1) =  {e}^{3 \times 1}  \\  \\ f(1) =  {e}^{3}   \\  \\ plug \: f(1) = y \\  \\ y =   {e}^{3}

8 0
3 years ago
GIVING BRAINLY! :)
Leya [2.2K]
X-intercept: 9
Y-intercept: 3

Intercepts are plotted on the graph below

8 0
2 years ago
Estimate the awnser to 17 x 193
8_murik_8 [283]
I think i know this one. it's 3,281.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Some one help please
    9·1 answer
  • Solve for x, given the equation Square root of x plus 9 − 4 = 1.
    8·2 answers
  • Joshua is planning on 1404 miles driving trip his car gets an average of 36 miles per gallon the cost of gas is about $3.72 per
    9·1 answer
  • Nora took 10 bottles of water to a picnic. Of these bottles of water, she and her friends opened a certain number of bottles, b.
    15·1 answer
  • The mean number of words per minute (WPM) read by sixth graders is 81 with a standard deviation of 17 WPM. If 130 sixth graders
    5·1 answer
  • Mario started his homework at 3:30 He finished 25 minutes later. What time did Mario finish his homework?
    15·2 answers
  • The dimensions of the computer screen are modeled by the equation x2 + (x – 4)2 = 202. What is the value of x, the length of the
    7·2 answers
  • What is 17-2c for c =7
    6·2 answers
  • Pls help help help 11 points also this is mobymax
    8·1 answer
  • Convert 6 4/5 to an improper fraction.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!