In mathematics, the symbol "d" typically represents distance. When the variable "t" is equal to 2.5 hours, it suggests a scenario involving motion or change over time. To determine the specific value of "d" in this context, additional information such as the rate of change or speed would be needed, as distance is calculated by multiplying time by speed.
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Use the product and chain rules: d/dt te^(-t²) = (d/dt t)e^(-t²) + t(d/dt e^(-t²)) = 1 × e^(-t²) + t × e^(-t²) × d/dt -t² = e^(-t²) (1 + t × -2t) = (1 - 2t²)e^(-t²)
D = rt t = d/r r = d/t
There are 24 hours in 1 day, so 25 hours = 24 hours + 1 hours = 1 day + 1 hour Thus 25 hours after 09:00 am is 10:00 am on the following day.
If the time now is T hours (on a 24 hour clock), then the answer is mod(21 - T, 24) hours.
25 Hours