Mathematics

Problem

For a right triangle with a fixed hypotenuse of 10 m, the length of one leg x is increasing at 1 m/s when x = 6 m. Which statement correctly describes the rate of change of the other leg y at that instant? a)

y

is increasing at

0.75\text{ m/s}

. b)

y

is not changing. c)

y

is decreasing at

0.75\text{ m/s}

. d)

y

is decreasing at

1.33\text{ m/s}

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