Which expression is a cube root of -2
A. 3sqrt2 (cos(260degrees) +isin(260degrees))
B. 3sqrt2 (cos(60degrees) +isin(60degrees))
C. 3sqrt2 (cos(120degrees) +isin(120degrees))
D. 3sqrt2 (cos(90degrees) +isin(90degrees))
thanks!

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.

Can someone tell me if this is perpendicular? !

(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.