Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Complete all parts to the problem, thanks!! All different parts are for the one problem
On a trip ofd miles to another city, a truck driver's average speed was x miles per hour. On the return trip, the average speed was y miles per hour. The average speed for the round trip was 40 miles per hour.
20x
(a) Verify that y =
x - 20
Total distance
Average speed =
Total time
40 =
(d/x) + (d/y)
40 =
y + x
40y + 40x =
40x =
40y
40x =
(x- 20)
What is the domain? (Enter your answer using interval notation.)
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Transcribed Image Text:On a trip ofd miles to another city, a truck driver's average speed was x miles per hour. On the return trip, the average speed was y miles per hour. The average speed for the round trip was 40 miles per hour. 20x (a) Verify that y = x - 20 Total distance Average speed = Total time 40 = (d/x) + (d/y) 40 = y + x 40y + 40x = 40x = 40y 40x = (x- 20) What is the domain? (Enter your answer using interval notation.)
(b) Complete the table. (Round your answers to three decimal places.)
25
35
45
55
(c) Find the limit of y as x approaches 20 from the right. (If an answer does not exist, enter DNE.)
Interpret its meaning.
As x gets close to
mi/h, y becomes larger and larger
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Transcribed Image Text:(b) Complete the table. (Round your answers to three decimal places.) 25 35 45 55 (c) Find the limit of y as x approaches 20 from the right. (If an answer does not exist, enter DNE.) Interpret its meaning. As x gets close to mi/h, y becomes larger and larger
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