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3 years ago

Hiiii someone please help me I'm confused please helppp

Mathematics

1 answer:

olga55 [171]3 years ago

6 0

Answer:

17.5 units

Step-by-step explanation:

a² + b²= c²

9² + 15² = c²

81 + 225 = c²

c² = 306

c = √306

c = 17.5

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1 year ago

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Yakvenalex [24]

Answer:

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Step-by-step explanation:

we have

$-2x^{2} +y=-5$ ----> equation A

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solve by substitution

substitute equation B in equation A

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solve for x

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<em>Find the value of y</em>

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For $x=-\sqrt{2}$ ----> $y=-3(-\sqrt{2})^{2} +5=-1$

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The solutions are

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(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

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Monica [59]

Answer:

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Step-by-step explanation:

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