Use the graph to determine the domain and range of the relation, and whether the relation is a function a
Domain: {x|-8, 8}; Range: all real numbers, No, it is not a function.
b. Domain: {x| -8 X < 8), Range: all real numbers, Yes, it is a function.
Domain: {x| -8 X 8}; Range: all real numbers, No, it is not a function.
d. Domain: {x| -8 < X < 8), Range: {-12 sx s 12}; Yes, it is a function.

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

What situation is an example of an observational study

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.