There are 15 students in Mr. Weiss's chess club. The ratio of the number of boys to the number of girls in the club is 3 : 2. If the number of boys in the club does not change, how many additional girls would need to join the club in order for the ratio of the number of boys to the number of girls in the club to be 1:1​

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

a

step-by-step explanation:

no idea

step-by-step explanation:

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.