Use the formula an = aj(r)a- to write a formula for the geometric sequence below. 3, 6, 12, 24, 48, ...

= 3

Step-by-step explanation:

There is a common ratio r between consecutive terms in the sequence, that is

6 ÷ 3 = 12 ÷ 6 = 24 ÷ 12 = 48 ÷ 24 = 2

This indicates the sequence is geometric with n th term

= a₁

where a₁ is the first term and r the common ratio

Here a₁ = 3 and r = 2 , thus

= 3

europa2433

europa2433

step-by-step explanation:

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm