BigI1958 BigI1958

21-02-2020
Mathematics

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(1 point) A spotlight on the ground is shining on a wall 20m away. If a woman 2m tall walks from the spotlight toward the building at a speed of 0.8m/s, how fast is the length of her shadow on the building decreasing when she is 8m from the building?

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zohazoee zohazoee

22-02-2020

Answer:

[tex]dy/dt=0.22m/s[/tex]

explained by drawing diagram and solved by hand so look at below attach picture.

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