The center of a circle represented by the equation (x + 9)2 + (y − 6)2 = 102 is .

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.

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?

The area of the rectangle shown is 2x^2-x-15 square units. what is the width of the rectangle?