A manufacturer of light emitting diode LED lights has tested its lights and found that the percent chance P that a light will

Question

A manufacturer of light emitting diode LED lights has tested its lights and found that the percent chance P that a light will fail after t hrs of use can be approximated by the follow t 40 000 00 12 the P 100 a What is the percent chance that one of the company s LED lights will fail after 30 000 hrs Round to the nearest tenth b In how many hours will the chance of an LED light failing reach 40 Round to the nearest thousand hr

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