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Posted: **Tue May 10, 2022 9:11 pm**

: Section 12 4 Problem 9 1 Point A Lamp Has Two Bulbs Each Of A Type With An Average Lifetime Of 9 Hours The Probabil 1 (34.98 KiB) Viewed 15 times

: Section 12 4 Problem 9 1 Point A Lamp Has Two Bulbs Each Of A Type With An Average Lifetime Of 9 Hours The Probabil 2 (34.98 KiB) Viewed 15 times

: Section 12 4 Problem 9 1 Point A Lamp Has Two Bulbs Each Of A Type With An Average Lifetime Of 9 Hours The Probabil 3 (14.66 KiB) Viewed 15 times

Section 12.4: Problem 9 (1 point) A lamp has two bulbs, each of a type with an average lifetime of 9 hours. The probability density function for the lifetime of a bulb is f(t) = |e-t/9, t < 0. What is the probability that both of the bulbs will fail within 2 hours?

Section 13.8: Problem 4 (1 point Let F = (2x, 2y, 2x + 2). Use Stokes theorem to evaluate the integral of Faround the closed curve consisting of the straight lines joining the points (1,0,1),(0,1,1) and (0,0,1). In particular, compute the unit normal vector and the curt of as well as the value of the integral: (the unit normal vector VXF- The value of the integral is n