Posted by Walt on Tuesday, February 14, 2012 at 5:24pm.
Can you check my work Please?
Let N(t) be the number of bacteria after t days. Then N(t) = Pa^t for some constants P and a. Measurements indicate that N(4) = 5600 and N(8) = 362, 000
1. Write down the formula for N(t) using the rounded values of a and P. (But remember to use the more precise stored values when you use the formula!)
2. Evaluate N(7), N(9), and N(11). (Give answers to the nearest bacterium.)
1. My formula: 86.6(2.84)^t (these are rounded values)
2. (Using non Rounded Values I got the following)
N(7) = 17667 N(9) = 1026452 N(11) = 8252755

Math  Reiny, Tuesday, February 14, 2012 at 6:51pm
I assume this is a continuation of the question from yesterday.
http://www.jiskha.com/display.cgi?id=1329179895
for N(7) I got 127667 using memorystored "exact" values of a and P
Your values for N(9) and N(11) are correct
looks like you just had a typo.

Math  Walt, Tuesday, February 14, 2012 at 10:24pm
Yes, it was from yesterday, sorry if I should've just put this in that post. But thanks a bunch for checking my work.
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