The n candidates for a job have been ranked 1, 2, 3, …, n. let x = the rank of a randomly selected candidate, so that x has the following:
p(x = 1/n x=1,2,
0 otherwise
a compute e(x.
there is a part b i will post serperately

At which value in the domain does f(x) =0?

Someone answer asap 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)) =

Rounded to the nearest tenth, what is the value of x