Use the formula r=log10^i where r is the measure of the richter scale i is the intensity, to find the richter scale , measuremen
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By "inspection" you can write the equation as
.. x + y = 10
Then
.. y = -x +10 . . . . . . . . the desired form
.. x + y = 10
Then
.. y = -x +10 . . . . . . . . the desired form
Solution :
It is given that :
So,
The relative change is then,
This means that after 5 weeks, the revenue from the DVD sales in $563 with a rate of change of $70 per week and the increasing at a continuous rate of 12% per week.