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stealth61 [152]
2 years ago
7

What are the solution(s) to the quadratic equation 9x² = 4?

Mathematics
2 answers:
UkoKoshka [18]2 years ago
6 0

Answer:

x = ± \frac{2}{3}

Step-by-step explanation:

9x² = 4 ( divide both sides by 9 )

x² = \frac{4}{9} ( take square root of both sides )

x = ± \sqrt{\frac{4}{9} } = ± \frac{\sqrt{4} }{\sqrt{9} } = ± \frac{2}{3}

x = - \frac{2}{3} , x = \frac{2}{3}

vagabundo [1.1K]2 years ago
5 0

Answer:

x= 2/3, -2/3

Step-by-step explanation:

9x² = 4

To solve this quadratic, divide each side by 9

x^2 = 4/9

Take the square root of each side

sqrt(x^2) = sqrt(4/9)

x = ±2/3

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         ------------------------------
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Suppose n=6 , m=2 , z1 is the average of the elements of x , and z2 is the average of the first three elements of x minus the av
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Answer:

See step by step explanations fir answers.

Step-by-step explanation:

Given that;

n=6 , m=2 , z1 is the average of the elements of x , and z2 is the average of the first three elements of x minus the average of fourth through sixth elements of x

So, Let d=n∧28, d′=n∧22.

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On the other hand, d is a divisor of 28, and above shows d′ is, too. As it is also a divisor of 22, the only possibilities are d′=1, d′=2, corresponding to d=2, d=4.

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4 years ago
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