(Appendix 4B)What is the value of S2 in the two equations?
A) $100,000.
B) $128,889.
C) $140,000.
D) $144,444.

Question

Quizplus · Accepted Answer

We first need to calculate the value of S1 using the given formula:

S1 = (n/2) × (2a + (n-1)d)

S1 = (9/2) × (2 × $10,000 + (9-1) × $2,000)

S1 = $90,000

Now we can use the formula for the sum of squares:

S2 = [(n/6) × (n+1) × (2n+1)] × d2 + S12

S2 = [(9/6) × (9+1) × (2×9+1)] × $2,0002 + $90,0002

S2 = $1,111,100

Therefore, the value of S2 is $1,111,100, which is closest to option B, $128,889.

(Appendix 4B)What Is the Value of S2 in the Two