The lifetime, in years, of a certain type of fuel cell is a random variable with probability density function 81 f (x) = (x + 3)4 x > 0 0 x ≤ 0 a. what is the probability that a fuel cell lasts more than 3 years? b.

yes

step-by-step explanation:

4

step-by-step explanation:

y= -2x+4, have a great day

c.the first excerpt shows their expectations about the camp, and the second shows the reality of their circumstances

is the answer this is because first they talk about what is expected of the camp but in the second excerpt they get a harsh awakening to the true realities of the camp.

hope this

i would appreciate brainliest : )