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
wlad13 [49]
3 years ago
15

Solve any method: 9x^2+9x=4??

Mathematics
2 answers:
Gala2k [10]3 years ago
6 0
Subtract 4 from both sides, solve using quadratic formula
ax^2+bx+c
(-b(+or-) Square Root of b^2 - 4ac)/2a

9x^2+9x-4=0
-9(+or-)Square root of 9^2-4(9)(-4)/2(9)

Solve^
svetoff [14.1K]3 years ago
4 0
9x² + 9x = 4
9x² + 9x - 4 = 4 - 4
9x² + 9x - 4 = 0
x = <u>-9 +/- √(9² - 4(9)(-4))</u>
                2(9)
x = <u>-9 +/- √(81 + 144)</u>
                 18
x = <u>-9 +/- √225
</u>            18
x = <u>-9 +/- 15</u>
           18
x = <u>-9 + 15</u>    x = <u>-9 - 15</u>
          18                 18
x = <u>6</u>             x = <u>-24</u>
     18                    18
x = 1/3            x = -1 1/3
         
<u />
You might be interested in
Which of the following would be the most logical first step to solving this
NikAS [45]

Answer:

D is correct option

Step-by-step explanation:

The correct option is D.

The standard quadratic equation is ax²+bx+c=0

Where a and b are coefficients and c is constant.

It means that constant are on the L.H.S and there is 0 on the right hand side.

Therefore to make it a quadratic equation first of all you have to add 11 at both sides so that the R.H.S becomes 0.

The given equation is:

2x2-x+ 2 = -11

If we add 11 on both sides the equation will be:

2x2-x+ 2 +11= -11+11

2x^2-x+13=0

Thus the correct option is D

You can further solve it by applying quadratic formula....

8 0
3 years ago
Me puedes ayudar es para hoy porfavor ​
Inga [223]

Answer:

mira a las base de las figuras y busca cual base matchs con la figuras de la figura prinsipal

Step-by-step explanation:

como el cono va con la del toda la izquierda de la de la mitad

5 0
3 years ago
Giving brainliest for CORRECT awnser.
Alona [7]

Answer:

i think i am not sure

i am soo sorry if i gave it wrong but i think its A

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What are the domain and range of f(x) = |x + 6|?
san4es73 [151]

9514 1404 393

Answer:

  • domain: all real numbers
  • range: y ≥ 0

Step-by-step explanation:

The function is defined for all values of x, so its domain is all real numbers.

The function can produce values of f(x) that are 0 or greater, so its range is ...

  y ≥ 0

4 0
3 years ago
Please help quick<br><br> 12 points<br><br> write the ratio 7 to 8 as a fraction decimal and percent
OLEGan [10]

Answer: 7/8  0.875 87.5%

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which expression is equal to 20 - (8 + 5) + 4?
    11·1 answer
  • What is the value of x?<br>360<br>x = [?]​
    9·1 answer
  • Which of the following sets of ordered pairs represents a function?
    11·2 answers
  • If you know that a relationship is proportional and are given one ordered pair other than (0,0), how can you find another pair?
    10·1 answer
  • As a person cycling increases speed, the rate of calorie burned, distance traveled, and energy expended also increase. Which of
    5·1 answer
  • Find the following quantity.
    11·2 answers
  • What is the exactly volume of the cone to the left?
    12·1 answer
  • Using the chart above, which of the following statements is true when comparing the account balances?
    10·1 answer
  • Convert .80 to percent
    6·2 answers
  • Mr. Esposito is 5 foot 11 inches tall. Mrs. Humbert is 63 inches tall. Who is taller and by how much?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!