Question

Find the 9th term of geometric sequence 7,14,28,...

Answer 1

Answer:

56

Step-by-step explanation:

We have to look for the pattern in the numbers, so we can figure out what the next term in the sequence is !

It looks like, each number is multiplied by 2!

7 × 2 = 14

14 × 2 = 28

So,

28 × 2 = ?

The next term in the geometric sequence is ... 56!

Answer 2

Answer: a^9=1792

Step-by-step explanation:

To find a9 we use formula

an = a1 · r

n−1

an = a1 · r

n−1

a9 = 7 · 2

9−1

a9 = 7 · 256

a9 = 1792