Answered

List the next three terms in the following sequence:


1, 9, 17, 25, 33, 41,...


Also list the number that would be the twentieth number in the sequence.

a.

49, 57, 65; 153

b.

50, 58, 64; 152

c.

49, 57, 65; 152

d.

50, 58, 64, 153

Verified Answer :

i think the answer would be c. 49, 57, 65, 152

caylus

Hello,

\(a_{1}=1\\ a_{2}=9=1+8\\ a_{3}=17=1+2*8\\ a_{4}=25=1+3*8\\ a_{5}=33=1+4*8\\ a_{6}=41=1+5*8\\ a_{n+1}=1+n*8\\ a_{7}=1+6*8=49\\ a_{8}=1+7*8=57\\ a_{9}=1+8*8=65\\ a_{20}=1+8*19=153\\ Answer A\)

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