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alukav5142 [94]
3 years ago
11

8. If BD=BC, BD = 5x -26, BC = 2r + 1, and AC = 43, find AB.

Mathematics
1 answer:
charle [14.2K]3 years ago
8 0

Answer:

24

Step-by-step explanation:

BD=DC

5x-26=2x+1

5x-2x=1+26

3x=27

x=9

BC=2x+1

=2*9+1

BC =19

so AB=AC-BC

AB=43-19

AB=24

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Answer:

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Step-by-step explanation:

The given matrix addition is

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Therefore, the elements of matrix B are b_{11}=-14,b_{12}=9,b_{13}=8,b_{21}=4,b_{22}=-1,b_{23}=0.

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