3 years ago

What does X equal to ?

Mathematics

1 answer:

Ierofanga [76]3 years ago

6 0

Answer:

x= 15

Step-by-step explanation:

We can use cross products to solve this problem

7 2x+5

-- = --------

3 x

7x = 3(2x+5)

Distribute

7x = 6x +15

Subtract 6x from each side

7x-6x = 6x-6x+15

x = 15

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The general solution of 2 y ln(x)y' = (y^2 + 4)/x is

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Replace $y'$ with $\dfrac{\mathrm dy}{\mathrm dx}$ to see that this ODE is separable:

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Integrate both sides; on the left, set $u=y^2+4$ so that $\mathrm du=2y\,\mathrm dy$ ; on the right, set $v=\ln x$ so that $\mathrm dv=\dfrac{\mathrm dx}x$ . Then

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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77julia77 [94]

I hope this helps you

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