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jarptica [38.1K]
3 years ago
11

A person of height 1.6m up to the eye level is standing at a point 2m away from the bank of the river and found an angle of elev

ation of 30°. find the width of the river.​
Mathematics
1 answer:
natima [27]3 years ago
5 0

Step-by-step explanation:

tan30° = Height of person / (Distance away from river bank + river's width) = 1/√3.

Therefore 1.6m / (2m + x) = 1/√3

By cross multiplication, 1.6√3 = 2 + x.

Hence, x ≈ 0.77m.

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3 years ago
What is the value of c in the equation x^15/x^c =x^6
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Step-by-step explanation:

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3 years ago
What is the solution to the system of equations? O (-6,-) O (-2, 6) O (6,2) O (-2,-6)​
damaskus [11]

Answer:

Option (1)

Step-by-step explanation:

System of equations is represented by two straight lines on a graph.

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Option (1) will be the correct option.

4 0
3 years ago
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Raquel works in a pet store every day after school and sometimes on weekends. She earns $5.20 per hour. If Raquel works 21 hours
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Answer:

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