Tutors Answer Your Questions about Exponential-and-logarithmic-functions (FREE)
Question 393326: evaluate 1/32 to the negative 3/5 power.
I think you have to find out what the cube root of 32 is so you can find ou the cube root of 1/32, and that will cancel out the threes and you get 1/(cube root of 32) to the negitive 1/5, but 32 doesn't have a cube root, and after that I'm just lost. I don't get this at all.
Click here to see answer by scott8148(6628)   |
Question 393342: in the year 2001, the United States will host the international mathematical olimpiad. Let I,M, and O be distinct positive intergers such that the probuct I*M*O=2001. What is the largest possible value of the sum I+M+O?
Click here to see answer by Alan3354(69443)  |
Question 393385: Exoponential Method
1.A biologist is researching a newly-discovered species of bacteria. at time t=0 hours, he puts one hundred bacteria into what he has determined to be a favorable growth medium. Six hours later, he measures 450 bacteria. Find an exponential equation thet approximates the information.
2. A $1,000 deposit is made at a bank that pays 12% compound monthly. How much will you havein your account at the end of 10 years.
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 393681: 1)
3√30x^15/120x^17y^-1
It is a cube root.
2)3√4√10=100^2x
There's 10 inside of cube root and 4th root.
3)9√(2xy^4)^-12/(8x^12y)^2
It is a 9th root.
Thank you so much!!!!!! I have a test on Friday and my teacher really can't teach :(
Click here to see answer by stanbon(75887) |
Question 395072: The half life of thorium-229 is 7340 yrs. how long will it take a sampleof this substance to decay to 20% of its original amount?
That is the problem. I need help finding the solution. I know I will use the model A=Aoe^kt. I believe it would go something like:
A/2=Ao/2 ^kt
0.2=???
I need to find my K before I can go further, but I am not sure how to do that. I would appreciate any help! Thank you!!
Click here to see answer by ankor@dixie-net.com(22740) |
Question 395078: Here is the problem I am working on:
A bird species in danger of extinction has a population that is decreasing exponentially. Five years ago the population was at 1400 and today only 1000. Once the population drops below 100, the situation will be irreversible. When will this happen?
I will use the model A=Aoe^kt
I would appreciate any help! Thank You!
Click here to see answer by jsmallt9(3758) |
Question 398285: I took a pre -test and missed a couple im not sure how to do if it all possible
work them out with explanations of why it was done that way so it well help me understand.
Solve. What is the largest solution log[x+3]4=2
thex+3 will be base of the log
2log[4]x+log[4]3=log[4]x-log[4]2
all the 4 s are the baseof the log
solve 3^(x+1)=7^(x-4) round your answerto the nearest hundredth
Thank you
Click here to see answer by ewatrrr(24785)  |
Question 398519: Milk costs $2.74 in 2002 if the rate of inflation continues it would cost $3.41 in 2024. What is the rate of inflation in July 2002?
All I have so far to find out the equaiton is-
y=y1(b)^x-x1
3.41=2.74(b)^22 but I'm not sure if this is correct or the right way to figure it out
Click here to see answer by jsmallt9(3758) |
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