Find the nth, or general, term.
, 
, 
, . . .
A. 
B. 
C. 7n-1
D. 
Answer: B
Mathematics
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Complete the operation and simplify if necessary.
?
?
A.
B.
C.
D.
E.
Mathematics
Perform the indicated operation by hand.4.272 - 2.194
A. -2.078 B. 2.178 C. 2.078 D. 6.466
Mathematics
Tell which set or sets the number belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.- 
A. rational, real B. integers, real C. irrational, real D. real
Mathematics
Find the exact value of the expression using a sum or difference identity.cos 
A. 
B. 
C. 
D. 
Mathematics