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
Evgesh-ka [11]
3 years ago
9

Solve for x.

Mathematics
2 answers:
Alex Ar [27]3 years ago
6 0

Answer:


Step-by-step explanation:

3x^2     -   4x    -     2     =   0

<u>Solution:</u>

x     =    2  +  sqrt  10/3

x      =    2    -  sqrt  10/3

<u>Decimal:      </u>

x      =       1.72076.....

x       =        0.38743.....



<u>Solve Quadratic equation:</u>

3x^2   -     4x     -   2   =   0

<u>Use quadratic formula:</u>

a    =    3

b     =      -4

c       =    -2

<u>Showing Work:</u>

x     =      -b +/-  sqrt b^2   -  4ac/2a

x       =       -( -4) +/-  sqrt (-4^2)  -   4(3) ( -2)/ 2(3)

x       =     4 +/-   sqrt 40/6

<u>Ans:   x      =    2/3     +   1/3   sqrt 10    or      x    =    2/3   +     -1/3  sqrt 10</u>


   

Hope that helps!!!!!!                    : )                      -P-        


Sphinxa [80]3 years ago
4 0

<u>Answer</u>

1.72   or    -0.387


<u>Explanation</u>

3x²-4x-2=0

3x²-4x = 2

x² - (4/3)x = 2/3

x² - (4/3)x + (2/3)² = 2/3 + 4/9

(x - 2/3)² = 10/9

x - 2/3 = √10/3                            or     x - 2/3 = -√10/3

x = √10/3 + 2/3                           or     x = -√10/3 + 2/3

   = 1.72                                or                 = -0.387





You might be interested in
I NEED HELP!!!!!!
omeli [17]
The answer is 3. because you go -4 on the y axis and go up by 3
3 0
3 years ago
Investors buy a studio apartment for $140,000. Of this amount, they have a down payment of
Soloha48 [4]

Answer:

Everyone Call this number *spam call like a prank call* 786 280 5450

6 0
2 years ago
Pls help me quick I will name brainliest
Artist 52 [7]
1.47 2.156 3.62 4.58
8 0
2 years ago
Read 2 more answers
The water park had a total of 1,212 visitors on Friday, Saturday, and Sunday. If the same number of people visited each day, how
Archy [21]
The answer is 404 visitors per day, Because 3/1212=404
5 0
3 years ago
Read 2 more answers
What percent of 140 is equal to 7% of 500​
blagie [28]

Answer:

49%

Step-by-step explanation:

7 percent of 500=35%

4 0
3 years ago
Read 2 more answers
Other questions:
  • You obtain a simple interest loan from National City for $2,500 at 7.5% for 5 years. Find the amount of interest on the loan
    5·1 answer
  • 100 is 86% of what number
    11·1 answer
  • Myles mows lawns during the summer to earn money. Since he is trying to save money for a car, he tries not to spend very much of
    11·1 answer
  • In a scale model of the Eiffel Tower, 10 centimeters represent 65 meters. If the real Eiffel Tower is approximately 325 meters t
    8·1 answer
  • You plan to go skiing this weekend in Tennessee. The ski resort charges $18.50 per hour in addition to a $100 deposit to rent sk
    10·2 answers
  • Find the midpoint of the segment with the given endpoints (0,9) and (6,-)
    11·1 answer
  • Shawn took the bus from Seattle to Portland, a distance of 175miles. If the trip took 3.5 hours, what was the speed of the bus?
    10·2 answers
  • Please help! Math is my worst subject
    13·1 answer
  • A number, m, is rounded to 1 decimal place.
    13·1 answer
  • Eric kept track of his days is a journal:
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!