Question: thank you (grade12math)logarithmic functions 1. When you drink a cup of coffee or a glass of cola, or when you eat a chocolate bar, the

thank you (grade12math)logarithmic functions

1. When you drink a cup of coffee or a glass of cola, or when you eat a chocolate bar, the percent, P, of caffeine remaining in your bloodstream is related to the elapsed time, t, in hours by t = 5(logP / log0.5) a) How long will it take for the amount of caffeine to drop to 20% of the amount consumed? [2marks] b) Suppose you drink a cup of coffee at 9:00 am, what percent of the caffeine will remain in your body at noon? [3marks] A) How many times as intense is an earthquake a) If an earthquake is 390 times as intense as an with a magnitude of 7.2 than an earthquake with a earthquake with a magnitude of 4.2 on the Richter magnitude of 5.6? [3marks] scale, what is the magnitude of the more intense earthquake? [2marks] 3. The population of bedbugs in an apartment is increasing at a rate of 8.4% per month. If the initial population is estimated to be 80000 bedbugs, how long will it take until the population reaches 1 million? [5marks]

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