The annual profits of a company are modeled by the function f(x) =x4 – 87x2 – 26x + 2680, where f(x) represents an amount in thousands of dollars, and x is years, starting in 1950. During what years has the company had profits of one million dollars or more?

Name the quadrilaterals that have four equal sides.

Identify one charcteristic of exponential growth

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.