3 years ago

Determine the solution and the reasoning that justifies the solution to the systems of equations.

Mathematics

1 answer:

Alenkinab [10]3 years ago

3 0

Answer: (-2,4), because it is the point of intersection of the two graphs

Step-by-step explanation:

i did it

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tiny-mole [99]

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Step-by-step explanation:

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3 years ago

Solve the initial value problem yy′+x=x2+y2‾‾‾‾‾‾‾√ with y(1)=8‾√. To solve this, we should use the substitution u= x^2+y^2 help

leva [86]

Looks like the equation is

$yy'+x=\sqrt{x^2+y^2}$

Substitute $u(x)=x^2+y(x)^2$ , so that $u'=2x+2yy'$ . Then the equation is the same as

$\dfrac{u'-2x}2+x=\sqrt u\implies u'=2\sqrt u\implies\dfrac{\mathrm du}{2\sqrt u}=\mathrm dx$

Integrate both sides to get

$\sqrt u=C\implies\sqrt{x^2+y^2}=C$

Given that $y(1)=\sqrt8$ , we have

$\sqrt{1^2+(\sqrt8)^2}=C\implies C=3$

so the solution is

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2 years ago

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aleksklad [387]

15. The answer is D

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2 years ago

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Pavel [41]

Answer:

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Step-by-step explanation:

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h is the height of the cone

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Answer:

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2 years ago

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