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nasty-shy [4]
3 years ago
7

Q.An observer 1.7m tall is 20sqrt(3)m away from a tower.The angle of elevation from the eye of observer to the top of the tower

is 30 Find the height of the tower
plz Answer me ​
Mathematics
1 answer:
MakcuM [25]3 years ago
5 0

Answer:

21.7 m

Step-by-step explanation:

The question above is a right angle triangle and we would be using the trigonometric function of tangent to solve for it.

tan θ = Opposite/ Adjacent

Opposite side = Height = unknown

Adjacent = 20sqrt(3) m

θ = Angle of Elevation = 30°

Hence, we have:

tan 30° = Opposite/ 20√3

Opposite = tan 30° × 20√3m

Opposite = 20m

Height of the tower = Height of the observer + Height (Opposite side)

Height = 20m

Height of the the observer as given in the question is = 1.7m

Height of the tower = 20m + 1.7m

= 21.7m

Therefore, the height of the tower = 21.7m

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Mila plants 820 hectares of potatoes and corn. To maximise his profit he plants 140 hectares more of potatoes than of corn. How
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Answer:

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Step-by-step explanation:

Let x be the land used to plant potatoes in hectares.

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Given the information from the question, we know that:

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as you can see here we have 2 equations, means we can solve them simulteanously to solve for both. We will use elimination method.

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