Remember (Soh) (Cah) (Toa). CSC is just the inverse of sine.
I'm assuming 43 is actually 4/3
see what number the previous term must be multiplied by to get the next term
4 *something = 12, 12*something=36
common ratio is 3
Step-by-step explanation:
-4x+1+6-(-9x)
-4x+7-(-9x)
5x+7
To find the answer you would go 20 .73 / 7 and then you'll get your answer