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soldi70 [24.7K]
3 years ago
9

Help me with these questions plz

Mathematics
2 answers:
guajiro [1.7K]3 years ago
8 0
28 cm tall is your answer
Pepsi [2]3 years ago
6 0
28 cm tall.

hope it helps
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An engineer needs to determine the distance across a river without swimming to the other side. The engineer notices a tree on th
nasty-shy [4]

Answer:

Step-by-step explanation:

The engineer can use a clinometer to measure the angle of elevation of the top of the tree. Let the height of the tree be represented by x, the she could determine the distance across the river, d, by applying the trigonometric function.

Tan θ = \frac{opposite}{adjacent}

           = \frac{x}{d}

the the distance, d = x ÷ Tan θ

Assume the angle of elevation of the top of the tree is 30^{o}, and the height of the tree is 10 m, then the distance, d, across the river would be;

d = \frac{10}{0.5774}

  = 17.3190

d = 17.32 m

The sketch to the explanation is attached to this answer for more clarification.

4 0
3 years ago
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enyata [817]

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Tell me if you need steps

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5 0
3 years ago
John has 3 apple he gives 2 to his brother. How many apples does he have?
Aliun [14]

Answer:

He has 1 apple left! :>

6 0
3 years ago
Read 2 more answers
Which polynomial is a product of (3x+2) and (x-7)
pogonyaev

(3x+2)  (x-7)

FOIL

first 3x*x  = 3x^2

outer  3x*-7 = -21x

inner = 2*x = 2x

last  2*-7 = -14

add them together  = 3x^2 -21x+2x -14

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Whats 24 over 74 in fraction form?
kompoz [17]

24/74 simplified is 12/37


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3 years ago
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