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7. If y varies directly with the square root of x, and y = 48 when x = 4, (a) Find the variation constant k, then write an equation in x and y. Show steps below. (b) Use your equation to find y when x = 2.25 (c) Find x when y = 600.

7. If y varies directly with the square root of x, and y = 48 when x = 4, (a) Find the variation constant k, then write an equation in x and y. Show steps below. (b) Use your equation to find y when x = 2.25 (c) Find x when y = 600.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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7. If y varies directly with the square root of x, and y = 48 when x = 4, (a) Find the variation constant k, then write an equation in x and y. Show steps below. (b) Use your equation to find y when x = 2.25 (c) Find x when y = 600.
Transcribed Image Text:7. If y varies directly with the square root of x, and y = 48 when x = 4, (a) Find the variation constant k, then write an equation in x and y. Show steps below. (b) Use your equation to find y when x = 2.25 (c) Find x when y = 600.
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