Answer:
Step-by-step explanation:
Answer: Choice B) Investment decreases by 3% each month
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Explanation:
We won't use the value 2500 at all.
The base of the exponential is 0.97
Set this equal to 1+r and solve for r
1+r = 0.97
r = 0.97-1
r = -0.03
The negative r value indicates we have exponential decay, so the value of the investment decreases by 3% each month.
Let's say you had $100 to start off. This would mean the investment would be worth $97 after one month is up.
Answer:
8π
Step-by-step explanation:
2 * π * r * 0.5
16π * 0.5
8π
Answer:
Rate of change = 75%
Step-by-step explanation:
Given:
First value (V1) = 4
Final value (V2) = 7
Find:
Rate of change.
Computation:
⇒ Rate of change = [(V2 - V1) / V1]100
⇒ Rate of change = [(7 - 4) / 4]100
⇒ Rate of change = [(3) / 4]100
⇒ Rate of change = [0.75]100
Rate of change = 75%
He can get 16 songs while still having $13 left over.
