7 and 9

7. [0/1 Points] DETAILS PREVIOUS ANSWERS Convert the rectangular equation to polar form. ( x2 + 12) 2 - 6 ( x2 - y? ) ( x 2 + 12) . 2 - 6(2 -12) X Need Help? Read It Watch It 8. [1/1 Points] DETAILS PREVIOUS ANSWERS LA Convert the polar equation to rectangular form. r= -11 x2+12 -121 Need Help? Read It Watch It 9. [0/1 Points] DETAILS PREVIOUS ANSWERS LAR Convert the polar equation to rectangular form. r = 2 cos 20 4 sin (20) X