The ordered pairs listed are the coordinates of points on the terminal sides of angles in standard position in the coordinate plane. ​Which two ordered pairs give the same value for sin θ?

A. (1/2,√3/2)
B. (-1/2,√3/2)
C. (√3/2,-1/2)
D. (-1/2,-√3/2)
E. (-√3/2,1/2)

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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.

The tile along the edge of a triangular community pool needs to be replaced? ?