Question

Evaluate:
10
Σ¹0 4(1)n-1 = [?]
Round to the nearest hundredth.
Enter

Answer 1

Explanation:

we are essentially calculating:

4(1/4)^0 + 4(1/4)^1 + 4(1/4)^2 + ... + 4(1/4)^9

Formula:
`(a(1-r^n))/(1-r)`

4(1-(1/4)^10)/ (1-1/4) approximates to 5.33