Find the points on the curve y = 2x3 + 3x2 − 12x + 7 where the tangent line is horizontal.
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Answer:
7 hours
Step-by-step explanation:
Since, the final amount of caffeine formula would be,
Where,
P = Initial value,
r = rate per period,
t = number of periods,
Here, r = 10% = 0.10, t = h, A =
Taking log both sides,
Hence, after 7 hours the amount of caffeine in a body to reduce by half.