As an exercise, we're going to look at data from three zircon samples and try to establish a rock age using those three data points. To start with we need to calculate the ratio of 206Pb to 238U. For the following values in arbitrary concentration units, calculate the ratio of 206Pb to 238U (i. e. 206Pb/238U) to four (4) significant figures. That is, if the value were:. 206Pb = 8,007, 238U = 526,451.238U = 526,451a. 0.9824b. 5123c. 12145

Answer : The ratio of and is,

Explanation :

As we are given that:

= 8007

= 526451

Now we have to calculate the ratio of and

Thus, the ratio of and is,

for e2020. the answer would be some directions from the mountain range so we can find mt. whitney. to locate which direction is north, you should use a   compass. this would not only find mt. whitney, but also becuase of this long paragraph you would get points because it's not like anyone actually reads your work becuase once they read the first sentence it sounds dumb enough to not read becuase i'm not good at answering this but the answer is compass for your benefit.

for e2020 ; -;