Mr. Adams has 14 boys and 8 girls in his mathematics class. If he chooses two students at random to work on the board, what is the probability that both students chosen are boys? Show your work. (DO NOT GIVE LINKS)

Step-by-step explanation:

14 + 8 = 22

14/22

22 - 1 = 21

14 - 1 = 13

The next time there are 21 students and 13 boys.

13/21

14/22 × 13/21

13/33

step-by-step explanation:

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