Solving Exponential Equations
2x+7 = 24
What is x = -3?
log2 (x+20) = log2 2
What is x = -18?
In 2005, here were 1,000 rabbits on an island. The population grows 8% every year. At this rate, how many rabbits will be there by 2020? Round to the nearest whole number.
what is 3172 rabbits
3-x = 3-3x
What is x = 0?
log6 5x = log6 100
What is x = 20?
The bear population increases at a rate of 2% per year. There are 1573 bear this year. Write a function that models the bear population. How many bears will there be in 10 yr?
what is f(100)=198,505.56 birds
83x+3 =89
What is x=2?
logx 25 = 2
What is x = 5?
The value of a new car in 2015 was $40,000. It decreases 7% each year. How much will the car be worth in 2024?
what is $200,816.44
43n = 42n+3
What is x = 3?
log7 (2x+1) = log7 (x+20)
What is x = 19?
Write an exponential function to model each situation. Find the value of each function after five years.
a. A $12,500 car depreciates 9% each year
b. A baseball card bought for $50 increases 3% in value each year.
a. what is f(5)=$7,800.40
b. what is f(5)=$57.96
62x = 6-x-1
What is n = -1/3?
log4 (4x+10) = log4 (x+1)
What is x = -3?
John bought a new home in 2002. The value of the home increases 4% each year. If the price of the house is 225,00 in 2015, how much did he pay for the house in 2002?
What is $135,129.17