A recursion formula and the initial term(s) of a sequence are given. Write out the first five terms of the sequence.a1 = 1, a2 = 6, an+2 = an+1 + an
A. 1, 6, 7, 8, 9
B. 1, 1, 2, 3, 5
C. 1, 6, 7, 13, 20
D. 1, 6, 7, 14, 21
Answer: C
Mathematics
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Add or subtract, as indicated. Assume that all variables represent positive real numbers.
+ 2
+ 2
A. 4x
B. 4x
C. 9x
D. 9x
Mathematics
Fill in the blank with the correct inequality symbol, using the rules for producing equivalent inequalities.If 
? 4, then x 
8.
A. < B. ? C. > D. ?
Mathematics
Perform the indicated operations and write the answer in the form 
where a and b are real numbers.6i(3 - 3i)
A. 18i - 18i2 B. 18 + 18i C. 18i - 18 D. 18i + 18i2
Mathematics
Find the value of the expression using the given values.
+ 
for x = 1, y = 9
A. 8 B. -8 C. 10 D. 82
Mathematics