Question

Find the three missing terms between 5 and 405 in the geometric sequence
Please check my answers to see I got the question right

Answer 1

then 405 is the 5th term

using the term in a gometric sequence

\[T _{n} = ar^{n-1}\]

\[405 = 5r^{5-1}\]

solve for r

then you can find the missing terms

Answer 2

Would the missing terms be 15, 45, and 135?

Answer 3

I got those answers by multiplying each number by 3

Answer 4

looks like it

Answer 5

well done