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Alla [95]
4 years ago
6

What is x? 0=3x² - 4x + 12​

Mathematics
1 answer:
luda_lava [24]4 years ago
5 0

Answer:

x=0.66+1.88i

x=0.66-1.88i

Step-by-step explanation:

Given

3x^{2}-4x+12=0

using the Quadratic Formula where

a = 3, b = -4, and c = 12

x=-b±\sqrt{b^{2}-4ac } /2a\\

x=-(-4)±\sqrt{(-4)^{2}-4(3)(12) } /2(3)

x=4±\sqrt{16-144} /6

x=-4±\sqrt{128} /6

b^{2} -4ac

x=-4±8\sqrt{2} i/6

x=\frac{2}{3}± \frac{4\sqrt{2}i }{3}

Which becomes,

x=0.66+1.88i

x=0.66-1.88i

The value of x will be x=0.66+1.88i

x=0.66-1.88i

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IRISSAK [1]

Answer:

x = 3

y = 2

Step-by-step explanation:

Equations

7x - 7y = 7                            

-4x - 7y = - 26                          Multiply both sides of the equation by - 1

-1(-4x - 7y = - 26)

4x + 7y = 26

Solution

Add the two equations together

7x - 7y = 7      

4x + 7y = 26

11x = 33                                  Divide by 11

11x/11 = 33/11

x = 3

4x + 7y= 26                           Use this equation to solve for y. Use x = 3

4*3 + 7y = 26                        Combine the left

12 + 7y = 26                          Subtract 12 from both sides

12 - 12 + 7y = 26 - 12            Combine

7y = 14                                  Divide by 7

7y/7 = 14/7

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2 years ago
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Step-by-step explanation:

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A store pays 159$ for a garden statue. The store marks up the price by 40%. 1.) what is the amount of mark up ( nearest hundred)
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Answer:

Step-by-step explanation:

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4 years ago
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7 0
3 years ago
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Could someone please help me figure this out...
Oduvanchick [21]
<h3>Answer:  29</h3>

====================================================

Work Shown:

The two angles shown are a linear pair. They are adjacent and supplementary. Supplementary angles add to 180 degrees.

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5x+35 = 180

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As a check, if x = 29, then

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