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Tutors Answer Your Questions about logarithm (FREE)
Question 73581: Carbon 14 dating assumes that the carbon dioxide on Earth today has the same radioactive content as it did centuries ago. If this is true, the amount of Carbon 14 absorbed by a tree that grew several centuries ago should be the same as the amount of Carbon 14 absorbed by a tree growing today. A piece of ancient charcoal contains only 15% as much radioactive carbon as a piece of modern charcoal. How long ago was the tree burned to make the ancient charcoal if the half-life of Carbon 14 is 5715 years?
Click here to see answer by stanbon(26252)   |
Question 73865: 5) Logarithms:
a) Using a calculator, find log 10000 where log means log to the base of 10.
Answer:
b) Most calculators have 2 different logs on them: log, which is based 10, and ln, which is based e. In computer science, digital computers are based on the binary numbering system which means that there are only 2 numbers available to the computer, 0 and 1. When a computer scientist needs a logarithm, he/she uses a log to the base 2. To find the log of a number to any base, we can use a conversion formula as shown below:
Using this formula, find Log(base 2) 10000. Round your answer to the hundredth's place.
Answer:
Show work in this space
Click here to see answer by jim_thompson5910(13785) |
Question 73487This question is from textbook college algebra
: The loudness of sound is based on intensity level measured in decibels using a logarithmic scale and is relative to (a ratio of) the weakest sound the ear can hear.
I am needing:
The formula for measuring sound.
Pick a specific sound, give the decibels of the sound, and explain what this measurement means.
This question is from textbook college algebra
Click here to see answer by bucky(1732) |
Question 73935: 5) Logarithms:
a) Using a calculator, find log 10000 where log means log to the base of 10.
Answer:
b) Most calculators have 2 different logs on them: log, which is based 10, and ln, which is based e. In computer science, digital computers are based on the binary numbering system which means that there are only 2 numbers available to the computer, 0 and 1. When a computer scientist needs a logarithm, he/she uses a log to the base 2. To find the log of a number to any base, we can use a conversion formula as shown here:
log b a=log a/ log b
Using this formula, find log 2 10000 . Round your answer to the hundredth's place.
Answer:
Show work in this space
Click here to see answer by ffc_01(9) |
Question 75498: The relationship between a telescope's magnitude and the diameter of the telescopes lens can be modeled by M=5logD=2 where M is the magnitude and D is the diameter(in milimeters) of the lens. If a telescope can reveal stars with a magnitude of 12, what is the diameter of the lens.
Click here to see answer by ankor@dixie-net.com(6689)  |
Question 75928: I am trying to solve the following equation:
log_5 x/125 = log_7(49x^3)
This is what I have tried...where am I going wrong?
log_5 (x) - log_5 (5^3) = log_7(7^2) + log_7 (x^3)
log_5 (x) - 3 = 2 + 3 log_7 (x)
-5 = x(3 log_7 - log_5)
Please help....when I now divide...I get x to be undefined?
Thank you
Click here to see answer by scott8148(3382)  |
Question 76388: you deposit $2000 in an account that pays 2% annual interest compounded quarterly. How long will it take for the balance to reach $2400?
I have having trouble completing this problem, please help with the steps.
Tx, H
Click here to see answer by stanbon(26252) |
Question 77052: Use the factor theorem to show that if 2^p - 1, where p does not equal 3, is a prime number, then p is neither divisible by 4 nor divisible by 3. (Alternatively, prove that if p is divisible by 4 or 3, then 2^p - 1 is divisible by some number other than positive/negative itself or positive/negative 1.)
Click here to see answer by Edwin McCravy(2920) |
Question 77545:
Logarithms:
a) Using a calculator, find log 1000 where log means log to the base of 10.
b) Most calculators have 2 different logs on them: log, which is base 10, and ln, which is base e. In computer science, digital computers are based on the binary numbering system which means that there are only 2 numbers available to the computer, 0 and 1. When a computer scientist needs a logarithm, he needs a log to base 2 which is not on any calculator. To find the log of a number to any base, we can use a conversion formula as shown here:
Using this formula, find . Round your answer to the hundredth's place.
Click here to see answer by stanbon(26252) |
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