Answer:
A; 14-5 would be equal to 5+4 as they both equal 9
Answer:
189
Step-by-step explanation:
189 hshwhwjwowoqoqooqpqp
Answer:
Step-by-step explanation:
<u>We can observe general terms of n:</u>
- aₙ = n + 1 + 2n + 2 + 3n + 3 + ... + (n - 1)n + (n - 1)
<u>Rewrite it as:</u>
- aₙ = (n + 1) + 2(n + 1) + 3(n + 1) + ... (n - 1)(n + 1) =
- (n + 1)(1 + 2 + 3 + ... + n - 1) =
- (n + 1)(1 + n - 1)(n - 1)/2 =
- (n - 1)n(n + 1)/2
<u>We need to find the least n for which aₙ > 500:</u>
- (n - 1)n(n + 1)/2 > 500 ⇒ (n - 1)n(n + 1) > 1000
<u>If n = 10:</u>
- a₁₀ = 9*10*11 = 990 < 1000
<u>If n = 11:</u>
- a₁₁ = 10*11*12 = 1320 > 1000
So the least n is 11
Answer:
35.770
Step-by-step explanation:
If the number behind the hundreths place is bigger than the hundreths place then you round up 1
Original investment is V
In the first year V decreased by 0.08V to give V - 0.08V
In the second year; V - 0.08V increased by $450 to give V - 0.08V + $450
The value (n) after two years = V - 0.08V + $450
The correct choice is 'D.'