Question

a moving boat is observed from the top of a 150m high cliff moving away from the cliff. The angle of depression of the boat changes from 60° to 45° in 2 min. Find the speed of the boat in m/min

Answer 1

Answer:

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Answer. The process of reading and understanding inscriptions is known as EPIGRAPHY.Let the number be 'x'

Twice a number is expressed as

2x

Subtracted 19 from it is expressed as

2x -19

It is equal to 11

According to question, it becomes,

2x−19=11

2x=11+19

2x=30

x= 30/2

x=15

Hence, the value is 15

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