Write a function describing the relationship of the given variables. h varies directly with d and when d=7, h=28 h=

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Write a function describing the relationship of the given variables.


h varies directly with d and when d=7, h=28


h=

Expert Solution
Step 1

Here given in the problem that h varies directly with d

in mathematical form, it can be stated as      hd

       Removing proportionality with equality by placing a constant k 

             h=kd

Now given in the problem d=7

                                          h = 28

                    Substituting values 

  get 

           28=k×7k=287k=4

 

       

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