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uysha [10]
3 years ago
5

Using the quadratic formula to solve 5x = 6x2 – 3, what are the values of x?

Mathematics
2 answers:
Ostrovityanka [42]3 years ago
6 0

Answer: B is the correct answer

Step-by-step explanation:

soldi70 [24.7K]3 years ago
3 0

Answer:

x_1=1.23\\x_2=-0.40

Step-by-step explanation:

Given a quadratic equation in the form ax^2+bx+c=0, you can use the Quadratic formula to solve it. This is:

x=\frac{-b\±\sqrt{b^2-4ac}}{2a}

Then, you need to subtract 5x from both sides of the equation given:

5x-5x=6x^2-3-5x\\0=6x^2-5x-3

You can identify that:

a=6\\b=-5\\c=-3

Then, substituting values into the Quadratic formula, you get:

 x=\frac{-(-5)\±\sqrt{(-5)^2-4(6)(-3)}}{2(6)}

x_1=1.23\\x_2=-0.40

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Rus_ich [418]

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3 years ago
PLZ HELP ASAP!!
Lilit [14]

The measure of first angle is 34 degrees and measure of second angle is 56 degrees

<em><u>Solution:</u></em>

Given that, the exterior sides of two adjacent angles make a right angle

Therefore, these adjacent angles forms 90 degrees

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The first angle has a measure that is six more than half the second

Therefore,

first angle = 6 + half of "x"

\text{ first angle } = 6 + \frac{x}{2}

Since these two angles forms 90 degrees,

first angle + second angle = 90

x + 6 + \frac{x}{2} = 90\\\\\frac{2x + 12 + x}{2} = 90\\\\2x + 12+x = 180\\\\3x + 12 = 180\\\\3x = 180 - 12\\\\3x = 168\\\\x = 56

<em><u>Therefore, first angle is:</u></em>

\rightarrow 6 + \frac{56}{2} = 6 + 28 = 34

Thus measure of first angle is 34 degrees and measure of second angle is 56 degrees

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