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3 years ago

Solve for x. 6x2−2=13

Mathematics

2 answers:

IrinaK [193]3 years ago

7 0

Answer: $x=\±1.58$

$\frac{6x^2}{6}=\frac{15}{6}\\\\x^2=\frac{15}{6}$

Step-by-step explanation:

By the Addition property of equality, you can add 2 yo both sides of the equation:

$6x^2-2+2=13+2\\6x^2=15$

By the Division property of equality, you can divide both sides of the equation by 6, then:

$\frac{6x^2}{6}=\frac{15}{6}\\\\x^2=\frac{15}{6}$

Apply square root to both sides of the equation. So, you get:

$\sqrt{x^2}=\±\sqrt{\frac{15}{6}}\\\\x=\±1.58$

makkiz [27]3 years ago

5 0

Answer:

x = ±sqrt(5/2)

Step-by-step explanation:

6x^2−2=13

Add 2 to each side

6x^2−2+2=13+2

6x^2 = 15

Divide each side by 6

6/6x^2 = 15/6

x^2 = 5/2

Take the square root of each side

sqrt(x^2) = ±sqrt(5/2)

x = ±sqrt(5/2)

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The numerator and denominator of a fraction are in the ratio of 3 to 5. If the numerator and denominator

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Answer: 5n = 3d and 3n + 6 = 2d + 4

Given that the numerator and denominator of a fraction are in the ratio of 3 to 5. When the numerator and denominator are both increased by 2, the fraction is equal to \dfrac{2}{3}.

We are to select the system of equations that could be used to solve the problem.

Since n denotes the numerator and m denotes the denominator of the given fraction, so we have:

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Thus, the required system of equations is,

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Alenkasestr [34]

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In my opinion, this helps organize things much better than rather have it all on one single line like this

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swat32

Answer:

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Step-by-step explanation:

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