Which shows 422 − 382 being evaluated using the difference of perfect squares method?

422 − 382 = (1,764 − 1,444)(1,764 + 1,444) = 1,026,560
422 − 382 = 84 − 76 = 8
422 − 382 = (42 − 38)2 = (4)2 = 16
422 − 382 = (42 + 38)(42 − 38) = (80)(4) = 320

Which system of linear inequalities is represented by the graph?

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

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.