Posted by Dee on Thursday, December 20, 2012 at 8:20pm.
The label on a prescription bottle directs the patient to take the medicine twice a day. The effective ingredient of the medicine decreases continuously at a rate of 25% per hour. If a dose of medicine containing 1 milligram of the effective ingredient is taken, how much is still present 12 hours later when the second dose is taken?

algebra 2  Damon, Thursday, December 20, 2012 at 9:57pm
.75^12
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