X=cubic root 2/27
Glad to help
Answer:4.5
Step-by-step explanation: Check the file for my explanation
Answer:
r = -5
Step-by-step explanation:
common ratio (r) is found be dividing one term by its preceding term:
r = 275 ÷ -55 = -5
or, r = -55 ÷ 11 = -5
Therefore, r = -5