The formula is F= 35e^-0.7p

make p the subject.

Thanks in advance I am not sure where to start.

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- Aug 31st 2010, 11:24 PMkiwisaRearrange the formula.
The formula is F= 35

*e^-*0.7p

make p the subject.

Thanks in advance I am not sure where to start.

- Aug 31st 2010, 11:54 PMProve It

. - Sep 1st 2010, 04:19 AMHallsofIvy
You "undo" what has been done to p.

The last thing done on the left is "multiply by 35" so the first thing you do to solve for p is divide both sides by 35:

Now, we have an exponential function (e to a power). The reverse of that is the "natural logarithm". Take the logarithm of both sides:

Finally, p is multiplied by -0.7. Divide both sides by -0.7: