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October 21, 2014

October 21, 2014

Posted by **sig figs ques 2** on Sunday, November 6, 2011 at 3:29pm.

If computing N(t) = Pa^t where P=642.035376 and a = 2.900129566 (both are stored in calculator), to what extent should the values of N(5), N(7) and N(9) be rounded? and why?

Note:

N(5)= 131,718

N(7)= 1,107,849

N(9)= 9,317,847

algebra - bobpursley, Sunday, November 6, 2011 at 3:18pm

Hmmmm. How many sig digits are in t? ONE? 5,7,9?

************

So the answer is ONE because t (even though it's an exponential and not a factor) only has one sig fig?

I thought it would be 9 sig figs of P that was the lowest

- algebra -
**Henry**, Monday, November 7, 2011 at 9:07pmpost it.

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