Question

5√2 please give me the answer and show the process please....​

Answer 1

Answer:  7.07106781187

Explanation: The value of 2 root 5 is solved as, The value of root 5 is 2.2360679775. Then the value of root 5 is multiplied with 2 according to the question. The value of 2 root 5 is 4.47.

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Answer 2

Answer:

1. A person is standing between two vertical mountains. the person fire a gun then hears the first echo from the nearby mountain in a time 3 second and here second echo from far mountain in a time 4 second. What is the distance between two mountains?

2. A boy is standing between two walls. the wall closer to him is at the distance of 680 m. if he shouts , he hears the first echo after 4 second and another after 2 second. What is the velocity of sound in air and what is the distance between two walls.