Barrons AP Calculus - David Bock

dmanu (dmanu) 2022-08-30 04:58:57 UTC #1

(E) Use A(t) = A 0 ekt, where the initial amount A 0 is 50. Then A(t) = 50ekt. Since 45 g remain
after 9 days, 45 = 50ek·9, which yields
To find t when 20 g remain, solve for t.
Thus,

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