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Elena-2011 [213]
2 years ago
5

17) Find DE 3r - 28 3r - 30 x D G 33 help asapp !!!

Mathematics
1 answer:
saw5 [17]2 years ago
6 0

Answer:

11=DE

Step-by-step explanation:

3x-28+3x-30+x=33

7x-58=33

7x=91

x=13

3(13)-28

39-28=11

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Stels [109]

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Step-by-step explanation:

It can be helpful to draw a diagram of the triangle we're concerned with. (See attached.)

We know the angle at the end of the shadow inside the triangle is 52°-22° = 30°. We assume the tree is growing straight up out of the hillside, so its angle with the hill inside the triangle is 90°+22° = 112°. Then the remaining angle between the shadow and the tree at the top of the tree is ...

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