Which of the following sets of numbers could be the lengths of the sides of a triangle?

a. 7.4 cm, 10.5 cm, 15.5 cm
b. 10.5 cm, 15.5 cm, 4.5 cm
c. 7.4 cm, 15.5 cm, 23 cm
d. 7.4 cm, 10.5 cm, 19.5 cm

Line gh passes through points (2, 5) and (6, 9). which equation represents line gh? y = x + 3 y = x – 3 y = 3x + 3 y = 3x – 3

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

If the value of cos330°is√3/2 then find cos 165°.