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joja [24]
3 years ago
10

Please help it’s 10 points

Mathematics
2 answers:
faltersainse [42]3 years ago
4 0

Answer:

2 4/20, which you can simplify as 2 1/5

Ksju [112]3 years ago
4 0

Hope this helps if u can (thanks and brainliest) please. Have a good day!! Ask any questions if u need to!!

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A tree was 9 feet tall when it was planted . After 5 years, it was 18 feet tall. What was the tree’s growth rate?
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Answer:

1.8 feet per year

Step-by-step explanation:

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Determine whether a triangle with the given side lengths is a right triangle.
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Answer:

yes yes no no

Step-by-step explanation:

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A forest ranger stands at the top of a 120 foot fire tower. He spots a fire 900 feet away from the base of the tower. What is th
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Answer: 7.6\°

Step-by-step explanation:

You need to draw a right triangle as the one attached, where \alpha is the angle of elevation from the fire to the top of the fire tower.

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\alpha= arctan(\frac{opposite}{adjacent})

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opposite=120\\adjacent=900

Then, you can substitute values:

\alpha= arctan(\frac{120}{900})

Finally, evaluating, you get that the angle of elevation  from the fire to the top of the fire tower is the following:

\alpha =7.59\°

Rounded to the  the nearest tenth of a degree:

\alpha\approx7.6\°

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