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percentage profit = percentage increasepercentage increase = (difference/original) x 100 = (50 - 40)/40) x100=25%
First of all, we need to get the equations in a form so that either x or y can be eliminated.
In this case, I have a positive amount of y, and a negative amount of y, meaning that I can a...
Percentages are always out of 100 - imagine the fraction 1/100. If I asked you to work out 1/100 of a number, how would you do it?It's pretty much the same for percentages - because 1% is the same as 1/10...
We know that when f(x) = x^n, f'(x) = nx^n-1 (1)
So we apply this to all components of f(x), giving
f'(x) = 2(3x) + 7 = 6x +...
In order to find the area bounded by a curve and the horizontal axis, we must integrate the curve between the specified limits.
Firstly we must integrate the curve x^2-2x+3. To integrate ...
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