all three please will thumbs up thank you. Use the properties of natural logarithms to simplify...
answer is not 79,64, or 69
Hospitals use radioactive tracers in many medical tests. After the tracer is used, must be stored as radioactive waste until its radioactivity has decreased enough for it to be disposed of as ordinary Chemical waste. For the radioactive isotope ledine-131, the proportion of radioactivity remaining after days is 0.087. How soon will the proportion of radioactivity decrease to 0.004 so that it can be disposed of as ordinary chemical waste? (Round your answer to...
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three please will thumbs up thank you.
765.77 not correct for number 5
DETAILS PREVIOUS ANSWERS 5. 10/1 Points) BERRAPCALCBR7 4.1.023.NVA ASK YOUR TEACHER MY NOTES PRACTICE ANOTHER A corporation recently sold ero-coupon 600 bonds maturing in 5 years with an annual yield of . Find the price ( The price is the present value of $600 years from row at the stated Interest rate) (Round your answer to the nearest cont.) $ 785.77 Need Help? Submit Answer Viewing...