Find the indicated term or coefficient of the binomial expansion.Find the 9th term of the expansion of (x + 3)12.
A. 1,082,565x8
B. 1,082,565x4
C. 3,247,695x4
D. 3,247,695x8
Answer: C
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Determine convergence or divergence of the series.
A. Converges B. Diverges
Solve the problem.What conditions, when present, are sufficient to conclude that a function f(x) has a limit as x approaches some value of a?
A. f(a) exists, the limit of 
as 
from the left exists, and the limit of 
as 
from the right exists.
B. The limit of 
as 
from the left exists, the limit of 
as 
from the right exists, and these two limits are the same.
C. Either the limit of 
as 
from the left exists or the limit of 
as 
from the right exists
D. The limit of 
as 
from the left exists, the limit of 
as 
from the right exists, and at least one of these limits is the same as f(a).
Solve.The temperature on a March morning is -9°F at 6 a.m. If the temperature drops 2° by 7 a.m., rises 6° by 8 a.m., and then drops 2° by 9 a.m., find the temperature by 9 a.m.
A. 7°F B. 19°F C. -7°F D. -19°F
Rewrite the given expression without exponents.
A. 
? x + x + y + y + y + y
B. 
? x ? x ? x ? x ? y ? y
C. 
? x + x + x + x + y + y
D. 
? x ? x ? y ? y ? y ? y