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3 years ago

11

how long will it take a bird traveling at an average speed of 12 miles per hour to travel 202 miles while flying south for the w

inter

1 answer:

torisob [31]3 years ago

6 0

Answer:

at 12 miles per hour, the bird would travel 202 miles in 16 hours and 50 minutes.

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What you need to look for is $\frac { dr }{ dt }$ when r=8.

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$\\ \\ =-\frac { 64 }{ 3{ r }^{ 2 } } \\ \\ When\quad r=8,\\ \\ \frac { dr }{ dt } =-\frac { 64 }{ 3\cdot { 8 }^{ 2 } } =-\frac { 1 }{ 3 } \\ \\ Answer:\quad -\frac { 1 }{ 3 } \quad cm/sec$

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