The sum of two numbers is -22. The difference of the two numbers is -30. What are the two numbers?

x = -26

y = 4

Step-by-step explanation:

Let x and y be the two numbers.

x + y = - 22

x - y = - 30                       Add

2x = - 52

x = -52/2

x = - 26

x + y = - 22

-26 + y = - 22

y = - 22 + 26

y = 4

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