Solve the following question: suppose small aircraft arrive at a certain airport according to a poisson process with rate a = 8 per hour. a. what is the probability that exactly 6 small aircraft arrive during a 1-hour period? at least 6? at least 10? b. what are the expected value and standard deviation of the number of small aircraft that arrive during a 90-min period? c. what is the probability that at least 20 small aircraft arrive during a 2.5-hour period? that at most 10 arrive during this period?

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

If 3x+8=3x+8 is it one solution or no solution

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?