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loris [4]
3 years ago
11

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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100 POINTS! PLEASE HELP!
Semmy [17]

Apply angle bisector theorem

\\ \sf\longmapsto \dfrac{9}{15}=\dfrac{3}{5}=\dfrac{2x-1}{3x}

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

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

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

\\ \sf\longmapsto x=5

#2

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

\\ \sf\longmapsto 4(2.25)=3x

\\ \sf\longmapsto 3x=9

\\ \sf\longmapsto x=3

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2 years ago
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207.24 = πr^2

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

3 0
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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Given that the hypotenuse of a triangle is c, which is the Pythagorean Theorem? a2 + c2 = b2 a2 – b2 = c2 2a + 2b = 2c none of t
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The pythagorean theorem states that a^2+ b^2=c^2.
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The tennis balls will not go the same distance

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