4 years ago

How much is it because I’m not too sure about it

Mathematics

1 answer:

Vera_Pavlovna [14]4 years ago

7 0

1) - 4e
2) 3a + 2b
3) - 2c + 6e
4) 5a^2 + 3a + b + c

Hope I could help!

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Answer:

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Step-by-step explanation:

Given points are

Blue = A(-4,8)

Purple = M(1,7.5)

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Let coordinates of points are (a,b).

Midpoint of two points is

$Midpoint=(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})$

$M=(\dfrac{-4+a}{2},\dfrac{8+b}{2})$

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$(1,7.5)=(\dfrac{-4+a}{2},\dfrac{8+b}{2})$

On comparing both sides we get

$1=\dfrac{-4+a}{2}\Rightarrow 2=-4+a\Rightarrow a=6$

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Therefore, the coordinates of point B are (6,7).

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Answer:

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