3 years ago

Solve x+y= -1 x - y = -7 using elimination.

Mathematics

1 answer:

Andreas93 [3]3 years ago

6 0

Answer:

(-4, 3)

x = -4, y = 3

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Semmy [17]

Apply angle bisector theorem

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$\\ \sf\longmapsto 9x=5(2x-1)$

$\\ \sf\longmapsto 9x=10x-5$

$\\ \sf\longmapsto 10x-9x=5$

$\\ \sf\longmapsto x=5$

$\\ \sf\longmapsto \dfrac{4}{3}=\dfrac{x}{2.25}$

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$\\ \sf\longmapsto x=3$

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aliina [53]

Answer:

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Step-by-step explanation:

The volume for a cylinder is V=πr^2h therefore,

v = 2279.64

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207.24 = πr^2

$\frac{207.24}{\pi} =r^2\\\\66 = r^2\\\\\sqrt{66} = r\\\\\\8.12 = r$

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2 years ago

Choose the correct simplification of the expression 3b/a-2

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To solving with their equation and expression to step by step.

3b/a-2

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The pythagorean theorem states that a^2+ b^2=c^2.
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