COCCUS-2.2-2.3/11/ Course Help Problem Value: 1 point(s). Problem Score: 0%. Attempts Remaining: 22 attempts. (1 point) Got help entering answers One of the main contaminants of a nuclear accident, such as that at Chernobyl, is strontium-90, which decays exponentially at an annual rate of approximately 2.2% per year. (a) Write the percent of strontium-90 remaining. P, as a function of years, r, since the nuclear accident. Answer. P = %. (b) Estimate the half-life of strontium-90. Answer: I = years. (c) After the Chernobyl disaster, it was predicted that the region would not be safe for human habitation for 92 years. Estimate the percent of original strontium-90 remaining at this time. Answer: E %. Note: In the second and third answer blank, round your answers to two decimal places. Help Entering Answers Provlew My Answers Submit Answers Show me another Results for this submission Answer Provlow Entered oiUse the exponential decay model for carbon-14, A = Ape-9000121, to solve this exercise. Some cave paintings were discovered today in a cave in South Carolina. The paint contained 29% of the original carbon-14. Estimate the age of the paintings. ANSWER: The paintings are approximately 29 years old.Solve for f using natural logarithms. Express the solution as an exact answer in terms of natural logarithms. (a) 26 = 100e-0.05t E (b) B = Per 1 = (c) Sell = 8et