anonymous
  • anonymous
A street light is at the top of a 19 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 5 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 40 ft from the base of the pole? Rate =
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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myininaya
  • myininaya
did you try drawing a traingle. You have a triangle inside a triangle. So you should set up the equation (x+y)/19=y/6 then you get y=6x/13 y'=6x'/13 but remember you are looking for x'+y'
myininaya
  • myininaya
does this help?
anonymous
  • anonymous
yeah...... but what's the final answer.

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myininaya
  • myininaya
i got 5ft/s+30/13 ft/s
myininaya
  • myininaya
[13(5)+30]/13 ft/s=[45+30]/13ft/s=75/13 ft/s

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