A ladder 15 feet long is leaning against a vertical wall. The base of the ladder is pulled away from the wall at a rate of 3 feet per second. How fast is the top of the ladder moving down the wall when its base is 9 feet from the wall? Answer: feet per second (Input numerical values only, do not type the units, space or comma.)

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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• Use continuous computations.
Input numerical values only, do not type the
units, space or comma.
• Input the exact number if the answer is an
integer (e.g. 5, 0, -3).
• If the answer is a fraction, type the fraction or
decimal value using two decimal places (e.g.
1/3, 0.33).
• If the answer is a radical value, input the
decimal value using two decimal places (e.g. if
the answer is V2, type 1.41)
Transcribed Image Text:Instructions • Use continuous computations. Input numerical values only, do not type the units, space or comma. • Input the exact number if the answer is an integer (e.g. 5, 0, -3). • If the answer is a fraction, type the fraction or decimal value using two decimal places (e.g. 1/3, 0.33). • If the answer is a radical value, input the decimal value using two decimal places (e.g. if the answer is V2, type 1.41)
A ladder 15 feet long is leaning against a vertical wall. The base of the ladder is pulled away
from the wall at a rate of 3 feet per second. How fast is the top of the ladder moving down
the wall when its base is 9 feet from the wall?
Answer:
feet per second
(Input numerical values only, do not type the units, space or comma.)
Transcribed Image Text:A ladder 15 feet long is leaning against a vertical wall. The base of the ladder is pulled away from the wall at a rate of 3 feet per second. How fast is the top of the ladder moving down the wall when its base is 9 feet from the wall? Answer: feet per second (Input numerical values only, do not type the units, space or comma.)
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