Answered: a. How fast is the surface area of a…

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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a. How fast is the surface area of a cube changing when the edge is 30 cm. If the edge is changing at the rate of 3 mm/sec.

b. A lady 1.65 meters tall walks towards a lamp post 2.65 meters high at a speed of 1.5 m/s . How fast does her shadow shorten in m/s.

c. Two boats left the wharf at the same time . One sailed in the direction 30 degrees North East at 40 kph . The other sailed due East at 25 kph . How fast were they separating at the end of one hour in kph.

d. A lady 1.65 meters tall walks towards a lamp post 2.65 meters high at a speed of 1.5 m/s . How fast does the end of her shadow move with respect to the lamp post.

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