For Exercise, use a variation model to solve for the unknown value. The resistance of a wire varies directly as its length and inversely as the square of its diameter. A 50-ft wire with a 0.2-in. diameter has a resistance of 0.0125 0. Find the resistance of a 40-ft wire with a diameter of 0.1 in.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter8: Introduction To Functions
Section: Chapter Questions
Problem 34CLR
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For Exercise, use a variation model to solve for the unknown value.
The resistance of a wire varies directly as its length and inversely as the square of its diameter. A 50-ft wire with a 0.2-in.
diameter has a resistance of 0.0125 0. Find the resistance of a 40-ft wire with a diameter of 0.1 in.
Transcribed Image Text:For Exercise, use a variation model to solve for the unknown value. The resistance of a wire varies directly as its length and inversely as the square of its diameter. A 50-ft wire with a 0.2-in. diameter has a resistance of 0.0125 0. Find the resistance of a 40-ft wire with a diameter of 0.1 in.
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