Questions on Algebra: Exponent and logarithm as functions of power answered by real tutors!

Tutors Answer Your Questions about Exponential-and-logarithmic-functions (FREE)

Question 192445: simplify: sq rt (-49) +2i^2-10i^7
Click here to see answer by edjones(7569)

Question 192471: Here is the problem. (t-4)to the 2/5 power =4. The book said the answer was 36, and it works out, but how did they arrive at this answer? I squared t-4 and took the square root of the answer, then my answer to the 5th power, but I didn't get 36.

Click here to see answer by Earlsdon(6287)

Question 192244: I need help with this problem:
log3x+log(x+2)=1
Click here to see answer by nerdybill(6950)

Question 192676: I am having so much trouble with solving logarithmic equations. I dont understand what happens. I know to cancel out but i just really need some help.
Click here to see answer by stanbon(57246)

Question 192643: log2 16
Click here to see answer by nerdybill(6950)

Question 192752: i can not seem to generate a graph for the expression F(x)=(1/2)^x i have set up a table such as the domain's i used are {-2,-1,0,1,2,} can you help??
Click here to see answer by Earlsdon(6287)

Question 192778: Solve for x e^-2+e^2+x=2
Click here to see answer by RAY100(1637)

Question 192861: Can you solve this?

5^(1-2x)=1/5 and 3x^3=9^x?
Thanks
Click here to see answer by stanbon(57246)

Question 193187: log2y=1/3log227
Click here to see answer by Alan3354(30983)

Question 193203: Sorry if this is the wrong field for my question, but I need help on powers to a fraction, the format i'm looking for is the way to solve than you so much, i need this as soon as possible.
Also i need help with logarithms such as how to solve
Click here to see answer by Alan3354(30983)

Question 193208: I need to find how to solve
Click here to see answer by Alan3354(30983)

Question 193209: I need to solve for X on the equation
Click here to see answer by stanbon(57246)

Question 193213: what i mean is how i solve this without a calculator, because i dont know how to solve for X on the equation so what do i do, I know that X=3 when the equation is but i need to know why
Click here to see answer by jim_thompson5910(28504)

Question 193527: Could you please provide me a detailed explanation of how to solve the following problem

ln (1 /
Click here to see answer by jim_thompson5910(28504)

Question 193526: It is okay to use a calculator to the solution to the following problem...

1 / 2 +
Click here to see answer by Mathtut(3670)

Question 193552: USE SYNTHETIC SUBSTITUTION TO EVALUATE THE POLYNOMIAL FUNCTION FOR THE GIVEN VALUE OF X.

F(X)=X^3+5X^2+4X+6 X=2
Click here to see answer by RAY100(1637)

Question 193555: USE SYNTHETIC SUBSTITUTION TO EVALUATE THE POLYNOMIAL FUNCTION FOR THE GIVEN VALUE OF X.

F(X)=5X^3-4X^2-2 X=0
Click here to see answer by RAY100(1637)

Question 193541: Could you please provide me with a detailed explanation on how to solve the following...
log2 (5) - log2 (15) + log2 (24)
Click here to see answer by stanbon(57246)

Question 193540: Could you please provide me with a detailed explantation on how to solve the following...
log 2

Click here to see answer by jim_thompson5910(28504)

Question 193557: Could you please provide a detailed explanation of how to solve the following...
5^3log3(2)
Click here to see answer by stanbon(57246)

Question 193616: Led Zeppelin once played a concert which exerted sounds of 10 000 times the intensity of a sound that can just be heard. What is the loudness in decibels?
Click here to see answer by stanbon(57246)

Question 193646: True or False...

2^log4(1/2)= 1/2

If false could you show me how to find the correct answer. Thanks!
Click here to see answer by Alan3354(30983)

Question 193637: How do you find the solution for...
5^3log3(2)
Click here to see answer by Alan3354(30983)

Question 193659: To Alan3354 Clarification on Question 193637

Your second option is the correct form of the question that I need help with.

Click here to see answer by Alan3354(30983)

Question 193667: Find (x) in each case...

f(x) = + 2

f(x) =
Click here to see answer by RAY100(1637)

Question 193715: If log[4](sqrt64)=(a)/(b) (where the fraction is written in reduced form,) then a=? and b=?
Click here to see answer by jim_thompson5910(28504)

Question 193720: if log{a}((x^3)/(y{z}^16))=Alog{a}(x)+Blog{a}(y)+Clog{a^2}
A=? B=? C=?
Click here to see answer by jim_thompson5910(28504)

Question 193724: -5ln(x^2+1)-9ln(x-5)+6ln(2x+3)=ln(?)
Click here to see answer by user_dude2008(1861)

Question 193723: ln(8)+2ln(x)+5ln(x^(2)+8)=ln(Ax^(2)(x^(2)+8)^(b))
A=? and b=?
Click here to see answer by user_dude2008(1861)

Question 193717: ln(lne^e^100)
Click here to see answer by user_dude2008(1861)

Question 193849: rewite 3(ln)4 as the logarithm of a single number
Click here to see answer by orca(409)

Question 193873: log(2x-3)=0
Click here to see answer by edjones(7569)

Question 194054: What is log(1/10)?
Click here to see answer by nerdybill(6950)

Question 193874: let log2=0.03+log3=0.05 find
log(3/2)
Click here to see answer by nerdybill(6950)

Question 194303: How many combinations of 6 volunteers can be selected from a group of 9 volunteers?
Is it 504?
Click here to see answer by edjones(7569)

Question 194425: Write the following as the logarithm of a sinle expression with coefficient 1:
3Log3(6) + 2Log3(5)

Click here to see answer by user_dude2008(1861)

Question 194466: A one-time deposit is made into an account that pays an APR of 8.5% compounded continuously. How long does it take for the worth of the account to triple?

Could you please provide a detailed explanation of how you achieved the solution. Thanks!

Click here to see answer by vleith(2825)

Question 194462: A radioactive substance has a half-life of 200 years. We currently have 15 grams of the substance.

How long until only .5 grams of the substance remains radioactive?

Could you please provide a detailed explanation of how you achieved the solution. Thanks!

Click here to see answer by Edwin McCravy(8882)

Question 194615: I need help solving this 3^x=40
Click here to see answer by edjones(7569)

Question 194745: Condense
6log2x-36 log 2 y
Click here to see answer by jim_thompson5910(28504)

Question 194877: How do you solve this problem: log10x = 3log10 2
Click here to see answer by user_dude2008(1861)

Question 194916: Please help me with this problem: ln(4)-ln(x)=10
Click here to see answer by jim_thompson5910(28504)

Question 194916: Please help me with this problem: ln(4)-ln(x)=10
Click here to see answer by solver91311(16868)

Question 195310: How do you algebraically find the solution to the following problem?
log(79-3x) + log(x) = 2
Click here to see answer by ankor@dixie-net.com(15638)

Question 195310: How do you algebraically find the solution to the following problem?
log(79-3x) + log(x) = 2
Click here to see answer by solver91311(16868)

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