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Alina [70]
2 years ago
5

Please help me please

Mathematics
2 answers:
Over [174]2 years ago
6 0

Answer:

A 8x+10y

Step-by-step explanation:

Sum of 12x+9y and -2y

12x+9y + -2y

12x +7y

Subtract 4x-3y from 12x+7y

12x+7y - (4x-3y)

Distribute the minus sign

12x+7y -4x+3y

8x +10y

s2008m [1.1K]2 years ago
4 0

Answer:

8x+10y

Step-by-step explanation:

What you do first is you need to subtract -2y from 9y to get 7y.

So you have (12x+7y)-(4x-3y). The negative sign needs to be added into the problem so it will be (12x+7y)+(-4x+3y). You will then add and minus them together to get 8x+10y.

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using the midpoint formula, solve for the midpoint of the segment with these pairs of endpoints (-11,30) and (-26,-2)​
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Answer:

Midpoint is (\frac{-37 }{2},  14)

Step-by-step explanation:

Midpoint = (\frac{x_{1} + x_{2} }{2}, \frac{y_{1} + y_{2} }{2})

              = (\frac{-11 -26}{2}, \frac{30 - 2 }{2})

              =  (\frac{-37 }{2}, \frac{28 }{2})

              =  (\frac{-37 }{2},  14)

Midpoint is (-37/2, 14)

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