HELP!?!?!?! I can't figure this out
1 answer:
Answer:
So, I believe n/2 may be even and 3n+1 is odd. They succumb to 3n if that helps.
Step-by-step explanation:
I'm not certain on what to do but I hope this helps some what.
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Answer:
n = 9
Step-by-step explanation:
20 + 18 + ... + 6 + 4
---------------------------
a = 20 ; d = -2 ; n = ?
--------
4 = 20 + (n-1)(-2)
-16 = (n-1)(-2)
---------
n-1 = 8
n = 9
-------
S(9) = (9/2)(20+4)
S(9) = 4.5*24
S(9) = 108
Answer:
Step-by-step explanation:
(5,9) and (2,3)
then by distance formula
d²=3²+6²
d²=9+36
d²=45
The sequence is geometric and the common ratio is 2
Answer:
I think it is C.2920
