The failure time of an electronic component is represented by random variable x, which is continuous and exponentially distributed with mean 8 years. find the probability density function (pdf) x. derive the probability (cumulative) distribution function of x and use it to find pr(2yrs ≤ x ≤ 4yrs).

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

Line wx is parallel to line yz. if m