Suppose that the time (in hours) required to repair a machine is an exponentially distributed random variable with parameter λ=0.5. what is (a) the probability that a repair time exceeds 9 hours?

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000

Identify one charcteristic of exponential growth

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?