Answer:
1/3
Step-by-step explanation:
677/280 that is the answer
28 + 53 = 81.
180 - 81 = 99.
Your missing length is 99 degrees.
( Just remember that all triangles add up to 180 degrees )
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Answer:
A
Step-by-step explanation:
(3a^4-2a^2+5a-10)-(2a^4+4a^2+5a-2)
a^4-6a^2-8
ANSWER

EXPLANATION
The general term for the sequence is

To find the 55th term, we have to substitute

in to the general term and simplify.
This implies that,




Therefore the 55th term is 161.