Question

1. Write the nth term of the following sequence in terms of the first term of the sequence. 10, 20, 40, . . . 2.Write the nth term of the following sequence in terms of the first term of the sequence. 2, -4, 8, -16, . . . 3. Write the nth term of the following sequence in terms of the first term of the sequence. a, a + 4, a + 8, . .

Answer 1

1. 10(2)^n-1

2. 2(-2)^n-1

3. a+4(n-1)

Explanation:

Correct on Odyssey.

Answer 2

Hello,

1)

`a_(0)=5`

`a_(1)=2*5`

`a_(2)=2^2*5`

`a_(3)=2^3*5`
...

`a_(n)=2^(n-)*5`

2)


`u_(1)=a`

`u_(2)=a+4`

`u_(3)=a+2*4`

`u_(4)=a+3*4`
...

`u_(n)=a+(n-1)*4`