Logs!
Simplify the expression: log2 8
What is 3?
Write the exponential equation 45= 1,024 in logarithmic form.
What is log4 1,024 = 5 ?
If there are initially 3000 bacteria in a culture, and the number of bacteria increase by 25% each hour, how many bacteria will there be in 5 hours? Round to the nearest whole number.
What is 9,155 bacteria?
Solve: 82x =8x+7
What is x=7?
Solve: log x = 3
What is 1000?
Write the equation log3 729 = 6 in exponential form.
What is 36=729 ?
Is the graph y= .7x increasing or decreasing, and is it a function?
What is decreasing, and it is a function?
If there are initially 3000 bacteria in a culture, and the number of bacteria increase by 25% each hour, after how many hours will you reach approximately 5,850 bacteria?
What is 3 hours?
Solve: 25x-4 =53x+1
What is x=-9 ?
log3(x) = 5
What is x = 243 ?
Write the equation log 1000 = 3 in exponential form.
What is 103=1000 ?
Write the exponential equation (1/2)-3=8 in logarithmic form.
What is log1/2 8 = -3 ?
Use the formula R = log I , where R is the measurement of the Richter scale and I is the intensity, to find the Richter scale measurement of an earthquake with intensity 30,000,000. Round your answer to four decimal places.
What is 7.4771?
Solve: 52x = 5x+4
What is x=4?
Solve: 7 + log12(8x) = 7
What is x= 1/8 ?
What is the asymptote of the graph of f(x) = log(x + 1) ?
What is x=-1 ?
Solve the following equation. Round your answer to the nearest hundredth.
(-8)14x-8 = -72
What is x = 8.83 ?
$4,000 is invested in a bank account earning 5.2% annually. How long, to the nearest tenth of a year, will it take the investment to double?
What is 13.7 years?
Solve: 3*23-x= 15 Round your answer to two decimal places.
What is x= 0.68 ?
Solve: 3log(x - 7) = 4 Round your answer to two decimal places.
What is x= 28.54 ?
What is the asymptote of the graph of f(x)= log(x + 2) -1 ?
What is x= -2 ?
Simplify log(10)3x
What is 3x?
Use the formula R = log I , where R is the measurement of the Richter scale and I is the intensity, to find the intensity of an earthquake with a Richter scale of 7.567 Round your answer to four decimal places.
What is 36,897,759.8570?
Solve: 102x+1 + 2 = 4 Round your answer to two decimal places.
What is x = -0.35 ?
Solve: 2log5(x)=log5(x+6)
What is x=3 and x = -2 ?