Asked by Dale
The probability P, as a percent, that a certain computer keyboard in a public library will last more than t years can be approximated by
P = 100e^−1.2t.
After how many years will the probability of keyboard failure be 76%? Round to the nearest tenth.
P = 100e^−1.2t.
After how many years will the probability of keyboard failure be 76%? Round to the nearest tenth.
Answers
Answered by
Damon
.76 = e^-1.2 t
ln .76 = -1.2 t
just like your other problem
ln .76 = -1.2 t
just like your other problem
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