Solving Exponential Equations and Compound Interest

how often is the money compounded if you use the formula A=Pe^rt?

• every month

• every day

• every year

• continuously

how do we solve exponential equations?

• clean it up, then rewrite as a log

• clean it up, then rewrite as an exponential

• guess and check

what does the n stand for?

• national

• nonagon

• number of times compounded

• number of times withdrawn

Find the balance in the account after the given period. $12,000 principal earing 4.8% compounded annually after 7 years.

• $3,243.19

• $16,661.35

• $15,243.19

• $4,661.35

Find the balance in the account after the given period.

$5000 deposit earning 1.5% compounded quarterly after 3 years

• $5,229.70

• $7,604.38

• $7,777.27

• $5,538.86

Find the balance in the account after the given period.

$3400 principal earning 3.6% compounded annually after 2 years

• $3,420.43

• $3,649.21

• $3,675.39

• $6,288.64

You invest $1600 at an annual interest rate of 4.6% compounded continuously. How much will you have in the account after 4 years.

• $1,923.23

• $10,138.07

• $6,701.28

• $800.26

Solve: 7^-x = 49

• x = 1

• x = -1

• x = 2

• x = -2

Solve: 2^x = 4^x+1

• x = -2

• x = 2

• x = -3

• x = 3

To solve 8 = 2^5x+7, you would need to re-write 8 as what base?

• 8

• 4

• 2

• Cannot be determined