9. A ladder 25 feet long is leaning against the side of a house. The base of the ladder is pulled away from the house at a rate of 2 feet per second. How fast is the top of the ladder moving down the side of the house when the ladder is 7 feet from the house?

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Bruce Crauder, Benny Evans, Alan Noell
Chapter2: Graphical And Tabular Analysis
Section2.1: Tables And Trends
Problem 1TU: If a coffee filter is dropped, its velocity after t seconds is given by v(t)=4(10.0003t) feet per...
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9. A ladder 25 feet long is leaning against the side of a house. The base of the ladder is pulled
away from the house at a rate of 2 feet per second. How fast is the top of the ladder moving down
the side of the house when the ladder is 7 feet from the house?
d
10. Find the indicated derivative.
d
(a)ƒ™(1), where ƒ(x) = ³. (b) for y = 3x² (7x + 1).
SP
Transcribed Image Text:9. A ladder 25 feet long is leaning against the side of a house. The base of the ladder is pulled away from the house at a rate of 2 feet per second. How fast is the top of the ladder moving down the side of the house when the ladder is 7 feet from the house? d 10. Find the indicated derivative. d (a)ƒ™(1), where ƒ(x) = ³. (b) for y = 3x² (7x + 1). SP
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