SOLUTION: PLEASE PLEASE PLEASE HELP ME! IT'S DUE IN 5 HOURS ONLINE! THANKS! A woman 5 ft tall is standing near a street lamp that is 12 ft tall, as shown in the figure. Find a function th

Algebra ->  Algebra  -> Length-and-distance -> SOLUTION: PLEASE PLEASE PLEASE HELP ME! IT'S DUE IN 5 HOURS ONLINE! THANKS! A woman 5 ft tall is standing near a street lamp that is 12 ft tall, as shown in the figure. Find a function th      Log On

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Question 156631: PLEASE PLEASE PLEASE HELP ME! IT'S DUE IN 5 HOURS ONLINE! THANKS!
A woman 5 ft tall is standing near a street lamp that is 12 ft tall, as shown in the figure. Find a function that models the length L of her shadow in terms of her distance d from the base of the lamp.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
using similar triangles __ the height of the lamp (12) is to the end of the shadow (d+L)
__ as the woman's height (5) is to the length of the shadow (L)

12%2F%28d%2BL%29=5%2FL __ "cross" multiplying __ 12L=5d+5L __ subtracting 5L __ 7L=5d __ dividing by 7 __ L=5d/7