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larisa [96]
3 years ago
10

Simplify. 13x+4−8+6x−13x−4

Mathematics
2 answers:
lyudmila [28]3 years ago
6 0

Answer:

6x-8

Step-by-step explanation:

Subtract 8 from 4 to get −4.

13x−4+6x−13x−4

Combine 13x and 6x to get 19x.

19x−4−13x−4

Combine 19x and −13x to get 6x.

6x−4−4

Subtract 4 from −4 to get −8.

6x−8

Fittoniya [83]3 years ago
4 0

Answer:

−8+6x

Step-by-step explanation:

ELIMINATE OPPOSITES--

13x+4−8+6x−13x−4

then you have your answer--

−8+6x

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Answer:

54

Step-by-step explanation:

3.1 2 6 divided by 2 2 = 2 (6 - 2) = 2 4. Dividing exponents : 3.2 5 6 divided by 5 2 = 5 (6 - 2) = 5 4

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V125BC [204]

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Answer:

  (-2, 2)

Step-by-step explanation:

The orthocenter is the intersection of the altitudes. The altitude lines are not difficult to find here. Each is a line through the vertex that is perpendicular to the opposite side.

Side XZ is horizontal, so the altitude to that side is the vertical line through Y. The x-coordinate of Y is -2, so that altitude has equation ...

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Side YZ has a rise/run of -1/1 = -1, so the altitude to that side will be the line through X with a slope of -1/(-1) = 1. In point-slope form, the equation is ...

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The orthocenter is the point that satisfies both these equations. Using the first equation to substitute for x in the second, we have ...

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The orthocenter is (x, y) = (-2, 2).

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