YS is the perpendicular bisector of XYZ, and YS is a shared side of XYS and ZYS. Which of the following must be congruent in order to verify that XYS = ZYS?

Atriangle has sides with lengths of 10 yards, 13 yards, and 18 yards. is it a right triangle?

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126