The equation for the half life of carbon 14 is a(1/2)t/5730 . Rewrite this equation with a base of e.

A drug is administered every 8 hours in 200 mg doses. The body eliminates 10% of the drug each hour. What is the half-life of this drug? Answer to the nearest 0.01 hour.

In a wildlife refuge, scientists have released six rabbits. They return one year later and have noticed that the rabbit population has risen to fifty rabbits. Create the exponential formula for this situation. Use appropriate variables other than ‘x’ and ‘y’ in your formula. Create the graph of this formula in Excel and label the axes properly. Display your equation on the graph.

Seeds found in a grave in Egypt proved to have only 58% of the Carbon-14 of living tissue. The half-life of Carbon-14 is 5730 years. When were the seeds harvested?

Solve the following equation. ln x = -1

solve for P. 45 = 10 log ( P / 1x10-12) P = ?