In a sequence, the first term is 12 and the common difference is 3. The fourth term in this sequence is

3

Step-by-step explanation: 3 difference means you are subtracting 3. So first term is 12. Second term is 12-3, so 9. Third term is 9-3, so 6. Fourth term is 6-3, so 3. 3 is the answer

if you explain the the question more correctly i might be able to answer this better

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl