The number of grams of a certain radioactive substance present at time t is given by the formula A=100e−0.002t, where t is the number of years. Find the number of grams that are present at time t=0 and at time t=1000.  The number of grams present at time t=0 is ______. (Round to the nearest hundredth as​ needed.)   The number of grams present at time t=1000 is _______. ​(Round to the nearest hundredth as​ needed.)

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The number of grams of a certain radioactive substance present at time t is given by the formula A=100e−0.002t, where t is the number of years. Find the number of grams that are present at time t=0 and at time t=1000. 

The number of grams present at time t=0 is ______.
(Round to the nearest hundredth as​ needed.)
 
The number of grams present at time t=1000 is _______.
​(Round to the nearest hundredth as​ needed.)
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