Over 500 million tweets are sent per day (digital marketing ramblings website, december 15, 2014). assume that the number of tweets per hour follows a poisson distribution and that bob receives on average 7 tweets during his lunch hour. a. what is the probability that bob receives no tweets during his lunch hour (to 4 decimals)? b. what is the probability that bob receives at least 4 tweets during his lunch hour (to 4 decimals)? c. what is the expected number of tweets bob receives during the first 30 minutes of his lunch hour (to 1 decimal)? d. what is the probability that bob receives no tweets during the first 30 minutes of his lunch hour (to 4 decimals)?

Find the third, fifth and seventh term sequence described by each rule a(n)=n+1

The graph of f(x)=|x| is reflected over the y-axis and horizontally compressed by a factor of 1/9. write a formula for function g(x)

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)) =