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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





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Find the greatest common factor of these three expressions. 5v2 , 14v4 , and 35
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Question

Find the greatest common factor of these three expressions. 5v2 , 14v4 , and 35


Answer:

<h2>1</h2>

Step-by-step explanation:

assuming that 5v2 is 5², and 14v4 is 14^4

5² = 25

14^4 = 38416

35 = 35

The factors of 25 are: 1, 5, 25

The factors of 35 are: 1, 5, 7, 35

The factors of 38416 are: 1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2401, 2744, 4802, 5488, 9604, 19208, 38416

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the greatest common factor is 1



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What Is 4x+6y=48 and what is the general form and x intercept and y intercept and slope and factored form?
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Given equation : 4x+6y=48 .

The general form of the linear equation is ax +by =c.

The given equation is already in general form.

Let us find x-intercept.

Plugging y =0 in given equation.

4x+6(0)=48 .

4x +0 = 48

4x = 48

Dividing both sides by 4, we get

4x/4 = 48/4

x = 12.

<h3>Therefore, x-intercept is (12,0).</h3>

Let us find y-intercept.

Plugging x =0 in given equation.

4(0)+6y=48 .

6y = 48

Dividing both sides by 6, we get

6y/6 = 48/6

y = 8.

<h3>Therefore, y-intercept is (0,8).</h3>

Let us convert given equation in slope-intercept form y=mx+b.

4x+6y=48

Subtracting 4x from both sides, we get

4x-4x+6y=48-4x

6y = -4x+48

Dividing both sides by 6, we get

6y/6 = -4x/6+48/6

y = -2/3 x +8.

<h3>Therefore, slope is -2/3.</h3>

Let us find factored form now.

GCF of the given linear equation is 2.

Factoring out 2 in all term, we get

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That is factored form.


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