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
gtnhenbr [62]
4 years ago
15

How to solve this equation 6x^2-2x+5+2x^2-7x-11

Mathematics
1 answer:
postnew [5]4 years ago
6 0

x= \frac{9+\sqrt{273} }{16}

OR

x= \frac{9-\sqrt{273} }{16}

Step-by-step explanation:

The given equation is

6x^{2}-2x+5+2x^{2}-7x-11

<u>Step 1: Arrange the equation</u>

6x^{2}+2x^{2}-2x-7x-11+5

<u>Step 2: Simplify the equation</u>

8x^{2}-9x-6

<u>Step 3: Identify a,b,c in the equation</u>

a=8

b=-9

c=-6

<u>Step 4: Apply quadratic formula to find the possible values of x</u>

x = \frac{-b±\sqrt{b^{2}-4ac } }{2a}

x= \frac{-(-9)±\sqrt{(-9)^{2}-4(8)(-6) } }{2(8)}

x= \frac{9+\sqrt{273} }{16}

OR

x= \frac{9-\sqrt{273} }{16}

Keyword: Equation

Learn more about equations at

  • brainly.com/question/4460262
  • brainly.com/question/8955867

#LearnwithBrainly

You might be interested in
What is the factored form of 2/3x + 4
I am Lyosha [343]

Answer: <em>(x+1)(x−4). </em>




Explanation: <em>x2−3x−4 x2−4x+x−4 x(x−4)+1(x−4) (x+1)(x−4). </em>

4 0
3 years ago
A fleece that sold for $65 is marked up to $70.20. What is the percent of markup? Round to the nearest whole percent.
natita [175]
Answer:

Markup: 8%

Explanation:

Amount of markup: 
70.20−65.00=5.20
Markup as a percentage of original price
5.2065.00×100=8

6 0
3 years ago
The table below shows the cube roots of different numbers:
Mila [183]

part A)

\bf \begin{array}{|c|cccccc|ll} \cline{1-7} x&8&27&64&125&&x\\ \cline{1-7} y&\stackrel{\sqrt[3]{8}}{2}&\stackrel{\sqrt[3]{27}}{3}&\stackrel{\sqrt[3]{64}}{4}&\stackrel{\sqrt[3]{125}}{5}&&\sqrt[3]{x} \\ \cline{1-7} \end{array}~\hspace{10em}y = \sqrt[3]{x}

part B)

f(x) = 10 + 20x

so if you rent the bike for a few hours that is

1 hr.............................10 + 20(1)

2 hrs..........................10 + 20(2)

3 hrs..........................10 + 20(3)

so the cost is really some fixed 10 + 20 bucks per hour, usually the 10 bucks is for some paperwork fee, so you go to the bike shop, and they'd say, ok is 10 bucks to set up a membership and 20 bucks per hour for using it, thereabouts.

f(100) = 10 + 20(100) => f(100) = 2010.

f(100), the cost of renting the bike for 100 hours.

4 0
3 years ago
I need help asap pleaseeee
lesantik [10]

Answer:

8

Step-by-step explanation:

401.92 divided by 16 = 25.12

25.12 divided by 3.14 is 8

3 0
3 years ago
Evaluate the variable expression when a = -2, b = 5, C = -5, and d = 3.
maksim [4K]

Answer:

-4(5)+1(-2*-5+5*3)

Step-by-step explanation:

-20+1(10+15)

-19(25)

-475

4 0
3 years ago
Read 2 more answers
Other questions:
  • Is cos 314 positive, negative or zero
    8·1 answer
  • Can you discuss the differences between circumference and area of a circle ?
    11·2 answers
  • ON TUESDAY NORACHI BOUGHT SIX HATS ON WENDSDAY HALF OF ALL HER HATS THAT HE HAD WERE DESTROYED ON THURSDAY THERE WERE ONLY 23 LE
    10·1 answer
  • The length of a rectangle is 6 meter less than twice its width.the area of the rectangle is 140m square.what are the dimensions
    11·1 answer
  • Find the mean absolute
    8·2 answers
  • How many ml of 20 percent acid should be added to pure acid to make 70 ml of 30 percent acid?
    5·1 answer
  • Measure and draw to show a blue crayon and a green crayon that is about 1 paper clip longer.
    7·1 answer
  • Pleasee help multiple choice whoever gets it correct gets brainlest
    5·2 answers
  • 3y - 5 (2x + 3) - 12
    5·2 answers
  • Which of the following equations represents a line that is parallel to the line with the equation y = 2/3x +2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!