Applications of Exponential

How long will it take $3000 to double if it is invested in an account that pays 3% compounded continuously?

• 23.1 years

• 22.1 years

• 21.1 years

• 20.1 years

Fayette Bank offers you 3.8% interest compounded annually. How long will it take for your money to triple if you use Fayette Bank?

• 17 years and 10 months

• 29 years and 2 months

• 28 years and 11 months

• 29 years and 6 months

The poplulation of Eden is growing continuously at a rate of 1.9%. If the current population is 15,230, about how many years to reach 20,000?

• 31

• 2

• 15

• 68

If you invest $5,000 into an account paying 6% interest compounded weekly, how many years will it take until there is $8,000 in the account?

• 7.84 years

• 6.84 years

• 9.67 years

• 8.67 years

An amount of $2,000 is deposited into a bank paying an annual interest rate of 2.85% compounded continuously. How long will it take for the money to double?

• 21.22 years

• 24.32 years

• 20.12 years

• 24.67 years

The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?

• 100.0g

• 50.0g

• 12.5g

• 8.5g

Mr. T invested $15,000 in an account that pays 5% interest compounding continuously, how much is in the account after 5 years? 

• $15,500.50

• $19,260.38

• $19,260.40

• $21,500.25

P = 26,000 | Rate = 2.4% | 4 years | Compounded Continuously | Amount owed???

• $2,496

• $28,496

• $3,406,924

• $28,619.74

Compounded Continuously Invested $400 at a rate of 35% for 8 months

• $520.07

• $505.12

• $460.11

• $7,643.74

A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?

• 14327

• 4309

• 839

• 7680