Answer:
(a) 
(b) nth term: 
Step-by-step explanation:
Solving (a)
Given

The first 3 terms.
When n = 1



When n = 2



When n = 3



So, the first three terms are:

Solving (b)
Given

Required
The nth term
The sequence is arithmetic.
So, first calculate the common difference (d)


The nth term is then calculated as:

Where

So:
and 


Collect like terms


Answer:
y= - abs(2x)
Step-by-step explanation:
Answer: 6.06 seconds
Step-by-step explanation:
This will not factor. The ball will hit the ground 6.06 seconds after thrown.
Answer:
700,000 + 2,000 + 1
Step-by-step explanation: