contestada

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

Respuesta :

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

[tex] 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[/tex]