Each day that a library book is kept past its due date, a $.30 fee is charged at midnight. which ordered pair is a viable solution if x reprsents the number of days that a library book is late and y represents the total fee?

(8, 2.4)

is the answer

look a the sides they are perpendicular

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2