Answer:
Sum of two interior angles=exterior angle




Done!
Answer:
I believe the answer is A
He is correct. If the second equation is multiplied by 2 and added to the first equation, the result is 0=3 , which means the system has no solution.
Answer:
H > 2.5
Step-by-step explanation:
Greater = >
Lessthan = <
Equal = =
Answer:
8
Step-by-step explanation:
Consecutive terms in an arithmetic sequence differ by a constant

. So



Denote the

-th term in the sequence by

. Now that

, we have

which means