Question

**A light is on the top of a 12
ft tall pole and a 5’6’’ tall person is walking away from the pole
at a rate of 2 ft/sec**

**At what rate is the tip of the shadow moving away from the pole when the person is 25 ft from the pole?****At what rate is the tip of the shadow moving away from the person when the person is 25 ft from the pole?**- please give all solutions

Answer #1

Solution-

Use simple similar triangles method to find the relation and than differentiate to find the value of speed,

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please don't do this unless you can do all parts, circle answer
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part 1)
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y^2−8x^3=225 dx/dt=5, x=−3, y=3
Answer: dy/dt=
part 2)
Assume x and y are functions of t. Evaluate dy/dt given that
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Answer: dy/dt=
part 3)
Suppose that for a company manufacturing calculators, the cost,
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C=70000+40x, R=400−x^2/30,,
where the production output in...

please only answer if you can do all parts, I also included my
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part 4)
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part 5)
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a
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7 feet away from the wall
ft/sec
15 feet away from the wall
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20 feet away from the wall
ft/sec
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