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Tutors Answer Your Questions about logarithm (FREE)
Question 205759: Change each logarithmic form to an equivalent exponential form:
(please show your work on how you reached the deteriminations)
a. log( 3, 81) = 4
b. log( 10, 0.0001) = 4
c. log( 3, (1/243) = -5
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I'm not sure if the formula above turned out correctly, but if it didn't, I tried to spell it out below:
a. Should read, log with the 3 below the g, then 81 =4
b. Should read, log with the 10 below the g, then 0.0001 = –4
c. Should read log with the 3 below the g, then in paranthesis 1 over 243,
end of paranthesis = - 5
Click here to see answer by stanbon(26259)   |
Question 207052: Please Please I need help solving a problem in algebra.
The problem is that I am trying to find the logarithmic formula for finding
the pH of a substance. The substance that I am using is a grapefruit. The pH is 3.3. Can you help me find the formula. Thank you very much for helping me.
Click here to see answer by scott8148(3382)  |
Question 207198: a computer is infected with the sasser virus. Assume that it infects 20 other computers within 5 minutes: and that these PCs and servers each infect 20 more machines within another 5 minutes, etc. How long until 100 million computers are effected? Thank you for your help!!!
Click here to see answer by Theo(667)  |
Question 207881This question is from textbook College Algebra and Trigonometry
: How do you solve a logarithmic word problem of this nature.
LAW A lawyer has determined that the number of people P(t)in a city of 1,200,000 people who have been exposed to a news item after t days is given by the function P(t)=1,200,000(1-e^-0.03t)
a. How many days after major crime has been reported have 40% of the population heard of the crime?
b. A defense lawyer knows it will be very difficult to pick an unbiased jury after 80% of the population have heard of the crime. After how many days will 80% of the population have heard of the crime? This question is from textbook College Algebra and Trigonometry
Click here to see answer by Theo(667) |
Question 208081: Hello! I have been working on this problem for the past 20 min P=13+45ln x represents the percentage of inbound email in the us that is considered spam, where x is the number of years after 2000. calculate to 6 decimals on each step when necessary.
Determine the percentage of spam in the year 2003. Round answer to 2 decimals.
Click here to see answer by jim_thompson5910(13787) |
Question 208089: if a bank compounds continuously, then the formula used is A=Pe rt where e is a constant and equals approximately 2.7183. Calculate A with continuous compounding. Round answer to nearest cent.
deposit is 2,000 for 5 years of 8%
I'm not sure if I use the answer I received from the previous question or use the deposit,years and percent.
Click here to see answer by Alan3354(6059)  |
Question 208089: if a bank compounds continuously, then the formula used is A=Pe rt where e is a constant and equals approximately 2.7183. Calculate A with continuous compounding. Round answer to nearest cent.
deposit is 2,000 for 5 years of 8%
I'm not sure if I use the answer I received from the previous question or use the deposit,years and percent.
Click here to see answer by checkley77(7035) |
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