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CaHeK987 [17]
3 years ago
14

ALGEBRA Find x and the measures of the unknown sides of each triangle.

Physics
1 answer:
valentina_108 [34]3 years ago
3 0

9514 1404 393

Answer:

  12.  x = 11; sides are 29

  13.  x = 5; sides are 25

Explanation:

12. The marked sides are equal length, so ...

  3x -4 = 2x +7

  x = 11 . . . . . . . . add 4-2x

  2x+7 = 2(11)+7 = 29 . . . side lengths

__

13. The marked sides are equal length, so ...

  6x -5 = 5x

  x = 5 . . . . . . . add 5-5x

  5x = 5(5) = 25 . . . side lengths

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Answer

given,

height of window = 4 m

time taken to travel = 1 s

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