A scientists starts with a 1-gram sample of lead-211. The amount of the sample remaining after various times is shown in the table below.

Question

anonymous · Answer

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anonymous · Answer

a) Find a regression equation for the amount y of lead as a function of time x.
b) Write the regression equation in terms of base e
c)Use the equation from part b to estimate the half-life of lead-211

wmj259 · Answer

If you have a Ti-84 calculator you can do this on that.

jim_thompson5910 · Answer

agreed with wmj259 

do you have a calculator like a TI83 or TI84 ?

anonymous · Answer

I dont have a calculator right now, i use the teachers at school

wmj259 · Answer

Okay so this will be tricky.

jim_thompson5910 · Answer

ok let me see if I can find a free online calculator. One sec

anonymous · Answer

how would i find an equation?

wmj259 · Answer

I just did it with my Ti84. But my answer is ............................. Sorry if I cant explain it I wont give an answer.

anonymous · Answer

well what are the steps in order to get an equation?

anonymous · Answer

i make a table on the calculator right?

anonymous · Answer

the time is the x and the Pb-211 is the y

wmj259 · Answer

https://learnzillion.com/lessons/2606-write-and-graph-an-exponential-function-by-

wmj259 · Answer

I will help you though.

anonymous · Answer

ok thank you, ima look at the video

wmj259 · Answer

It is a very good video from what i see. If I look at your table I need to look for a relation ship of the amount of PB-211 Lead-211 remaining.

wmj259 · Answer

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