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ZanzabumX [31]
3 years ago
14

Please solve this! I will give brainliets

Mathematics
1 answer:
torisob [31]3 years ago
5 0

Answer:

5 and 61

Step-by-step explanation:

Using Pythagoras' identity in the right triangles

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

(1)

c² = a² + b² = 3² + 4² = 9 + 16 = 25 ( take the square root of both sides )

c = \sqrt{25} = 5

(2)

c² = a² + b² = 11² + 60² = 121 + 3600 = 3721 ( take the square root of both sides)

c = \sqrt{3721} = 61

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Diano4ka-milaya [45]

Answer:

t_a = 7 s

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Step-by-step explanation:

Given:

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- The average speed in water v_w = 3 m/s

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- The total time T = 12 s

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- The time taken in water would be t_w = (12 - t_a)

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                            D = v_a*t_a+ v_w*(12 - t_a)

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Simplify and solve for t:

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                            t_w = 5 s

                           

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