SOLUTION: please help me someone i would appreciate it so much i need these answers before i go to class. thank you so much i will be so grateful for whoever solves these for me. its only 6

Question 247770: please help me someone i would appreciate it so much i need these answers before i go to class. thank you so much i will be so grateful for whoever solves these for me. its only 6 problems and you will be helping me out so much.
1. Use properties of logarithms to expand the expression as much as possible
(Note: I couldn't find the square root on the computer 2 put x under)
log2(squarerootofX/8)
2.Solve the logarithmic equation. Be sure to reject any value of x that produces the logarithm of a negative number or the logarithm of 0 : log10(x-30)= 3-log10x
3. Solve for x: 9^X-1=4
4. The logistic growth function f(T)= 320/1+5.4E^-0.26t describes the population of a species of butterflies t months after they are introduced to a non-threatening habitat. how many butterflies were initially introduced to the habitat?
5. the function A=Aoe^-0.00866x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. if 200 pounds of the material are initially put in the vault, how many pounds will be left after 30 years?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Get yourself a calculator and learn how to use it.
Limit yourself to one problem per question.
Six problems all at once is absurd.
There is no excuse for a response such as "I couldn't find the square root on the computer 2 put x under)
"Be sure to reject any value of x that produces the logarithm of a negative number" Do you know why? Because they can't exist.
9^X-1=4
Is that raised to the x-1 power or just to the x power?
If it is to the x-1 power (more likely) then it should be 9^(x-1)=4
Also try to type your words as they really appeared in the problems.

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