add them together then divide by 5
81 +86 +81 +76 +71 = 395
395/5 = 79
your average was 79
Answer:
IDK
Step-by-step explanation:
Answer:15.5 because you have to take away some point
Step-by-step explanation:
Next 6 terms =81 ,243,729,2187,6561,19683
Pythagoras theoram? use it here!
That is,
H² = 15² + 4²
H² = 225 + 16
H = √241
H = 15.5
You should opt for 15.5
P.S: Best of luck for your test! ;))