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A 200g sample of radioactive polonium-210 has a half-life of 138 days. This means that every 138 days, the amount of polonium left in the sample is half of the original amount.
a) Write an equation that models the amount of Polonium
b) What mass of Polonium-210 is left after 2 years?
c) Determine how long it will take for the sample to reduce to 150g
The University of McMaster undergraduate program is growing at a rate of 3% each year. The current enrollment is 12400. Determine when the enrollment will reach 13250.
You have found an investment at the bank that pays 2.4% interest per year for 10 years. How much should you invest now so that you have $2000 at the end of the 10 years?
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- ; Given the exponential model y = 2.65 * 1.43* answer the questions below rounding to two decimal places. a) Use the model found above to calculate y(3.5). У(3.5)- b) Solve y = 4 for x. x =arrow_forwardSeeds 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?arrow_forwardPlease provide a detailed solution including each step and an explanation. An answer is given along with the formula to use. This is the second time I'm requesting a solution.arrow_forward
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