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53. Electric Circuits An electric circuit contains two resistors connected in parallel, as shown in the figure. If the resistances of these resistors are R1 and R2 ohms, respectively, then their combined resistance R is given by the formula 1 R = 1 R R R a. Express R as a simplified rational expression. b. Evaluate the rational expression if R1 = 4 ohms and R2 = 10 ohms.

53. Electric Circuits An electric circuit contains two resistors connected in parallel, as shown in the figure. If the resistances of these resistors are R1 and R2 ohms, respectively, then their combined resistance R is given by the formula 1 R = 1 R R R a. Express R as a simplified rational expression. b. Evaluate the rational expression if R1 = 4 ohms and R2 = 10 ohms.

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Applying the Concepts 53. Electric Circuits An electric circuit contains two resistors connected in parallel, as shown in the figure. If the resistances of these resistors are R and R2 ohms, respectively, then their combined resistance R is given by the formula 1 R = 1 R R R R2 a. Express R as a simplified rational expression. b. Evaluate the rational expression if R1 = 4 ohms and R2 10 ohms.
Transcribed Image Text:Applying the Concepts 53. Electric Circuits An electric circuit contains two resistors connected in parallel, as shown in the figure. If the resistances of these resistors are R and R2 ohms, respectively, then their combined resistance R is given by the formula 1 R = 1 R R R R2 a. Express R as a simplified rational expression. b. Evaluate the rational expression if R1 = 4 ohms and R2 10 ohms.
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