SOLUTION: I need help on these questions as I'm preparing for a unit test. Please help Is the sequence geometric? If so, identify the common ratio. 256, 64, 16, 4 What is the summati

Question 1000173: I need help on these questions as I'm preparing for a unit test. Please help
Is the sequence geometric? If so, identify the common ratio.
256, 64, 16, 4
What is the summation notation for the series?
200+175+150+125+...+(-300)
What is the sum of the arithmetic series?
5
Σ (3n-2)
n-1
What is the sum of the geometric series? Round to the nearest whole number.
16
Σ 6(1/4)^n
n-1
Does the infinite series diverge or converge? If it converges what is the sum?
10+2+2/5+2/25+....
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
Read this lesson in this site about arithmetic progressions:
    - Arithmetic progressions

Read this lesson in this site about geometric progressions:
    - Geometric progressions

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