12. [I1 Points] DETAILS TANAPCALCBR10 5.6.006.MI. MY NOTES ASK YOUR TEACHER Resale Value Garland Mills purchased a certain piece of machinery 2 years ago for $500,000. Its present resale value is $260,000. Assuming that the machine's resale value decreases exponentially, what will it be (in dollars) 3 years from now? (Round your answer to the nearest dollar.) $ :1 Need Help? 13. [-I1 Points] DETAILS TANAPCALCBR10 5.6.009. MY NOTES ASK YOUR TEACHER Radioactive Decay Phosphorus32 (P-32) has a halflife of 14.2 days. If 450 g of this substance are present initially, nd the amount Q(t) present after t days. (Round your growth constant to four decimal places.) Q(t) = What amount (in grams) will be left after 15.8 days? (Round your answer to three decimal places.) :1 9 How fast (in grams per day) is the P32 decaying when t = 15.8? (Round your answer to three decimal places.) :1 9/dav Need Help? 14. [I1 Points] DETAILS TANAPCALCBR1 0 5.6.01 1 . MY NOTES ASK YOU R TEACH ER Carbon-14 Dating Wood deposits recovered from an archaeological site contain 37% of the C-14 they originally contained. How long ago did the tree from which the wood was obtained die? (Assume the half life of carbon-14 is 5,730 years. Round your answer to the nearest whole number.) :vr Need Help