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06.05.2020 • 

Mathematics

Atriangle is located on a three-dimensional coordinate plane. Matrix Ashows the location of each vertex, where the first column
represents the x coordinate, the second column represents the y coordinate, and the third column represents the coordinate
The triangle is dilated by a scale factor of 2, then translated by the factors in matrix B, resulting in an image triangle as
represented by the equation below.
2A-90
in which directions are the vertices translated, as indicated by matrix B?

Ответ:

jep88

17.04.2020

Mathematics

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DF = DE + EF

So,

DF = 47 + 3x +10

We know that DF = 9x - 39, so:

9x - 39 = 47 + 3x + 10

9x - 3x = 57 + 39

6x = 96

x = 16

EF = 3x + 10

EF = 3.16 + 10

EF = 48 + 10

EF = 58

It's fine :)

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