Questions on Algebra: Logarithm answered by real tutors!

Tutors Answer Your Questions about logarithm (FREE) Get help from our free tutors ===> Algebra.Com stats: 2011 tutors, 418873 problems solved View all solved problems on logarithm -- maybe yours has been solved already! Become a registered tutor (FREE) to answer students' questions. Click here to see problems AND answers on one page Question 173588: e^(2x-5e^x) = -6 Click here to see answer by Fombitz(13828)   Question 173744: Hi, My problem is log 17 times the fraction 2 radical x/y (small 17 and lowered) Click here to see answer by solver91311(16868)   Question 173873: I know how logarithms work, but how were they solved before there were calculators? Click here to see answer by nycsub_teacher(90)   Question 173873: I know how logarithms work, but how were they solved before there were calculators? Click here to see answer by solver91311(16868)   Question 173880: degree measure of angle 4.23 radians Click here to see answer by josmiceli(9652)   Question 173880: degree measure of angle 4.23 radians Click here to see answer by nycsub_teacher(90)   Question 173877: log5X+log15=0 Click here to see answer by nerdybill(6948)   Question 174002: how do you write the expression as a single logarithum: 1/2[log(base4)(x+1) + 2log(base4)(x-1)] +6log(base4)(x) Click here to see answer by gonzo(654)   Question 174104: I have a question ask you guys please assist me thank you inadavnce For the exponential function e^x and logarithmic function log x, how would I show the graphically effect if x is doubled. thank you again. Click here to see answer by solver91311(16868)   Question 173583: Solve: log2(log4x)=1 Click here to see answer by Alan3354(30968)   Question 173672: Log(base3)9x^3y%/3^2 Click here to see answer by Alan3354(30968)   Question 173883: How do you change the functions below to make them easier to graph? It is possible to just look that the functions as it is and understand how the graph will look like, in terms of the x and y points? Y=log_2^(4x) Y=log_2^(x^2) Y=log_2(x-2) Y=log_2(x^-1) Log_2 means to the base of 2. Click here to see answer by josmiceli(9652)   Question 174222: Simplify: 3 + (7)(4) + 6 I tryed timing the 7 and 4 but it doesnt come out right Click here to see answer by vleith(2825)   Question 174242: I really need help with this, I've been given the rules, but I don't under stand how to apply it. Thanks so much for your help! 1. Convert the following equations into logarithmic form: a. 6 = 2x (x is the exponent) b. 9 = 6y (y is the exponent) c. 7 = 3y (y is the exponent) d. X = 5y (y is the exponent) Click here to see answer by Mathtut(3670)   Question 174242: I really need help with this, I've been given the rules, but I don't under stand how to apply it. Thanks so much for your help! 1. Convert the following equations into logarithmic form: a. 6 = 2x (x is the exponent) b. 9 = 6y (y is the exponent) c. 7 = 3y (y is the exponent) d. X = 5y (y is the exponent) Click here to see answer by josmiceli(9652)   Question 174244: Please help! I've been show the rules, but I don't know how to apply them, could you please show me how? 3. Simplify the following expressions: a. X4 * X5 (4 & 5 are exponents, I don't know how to type that) b. Z9/Z10 (9 & 10 are exponents, I don't know how to type that) c. log3Y + log3Z (base 3) d. log5Y - log5Z (base 5) Click here to see answer by nerdybill(6948)   Question 174244: Please help! I've been show the rules, but I don't know how to apply them, could you please show me how? 3. Simplify the following expressions: a. X4 * X5 (4 & 5 are exponents, I don't know how to type that) b. Z9/Z10 (9 & 10 are exponents, I don't know how to type that) c. log3Y + log3Z (base 3) d. log5Y - log5Z (base 5) Click here to see answer by josmiceli(9652)   Question 174243: Please help! I've been show the rules, but I don't know how to apply them, could you please show me how? 2. Convert the following equations into exponential form: a. X = log3 8 (not sure how to type that the 3 is the the little base number) b. -9 = log5 Y (not sure how to type that the 5 is the the little base number) c. X= log6 Y (not sure how to type that the 6 is the the little base number) d. 100 = log2 Z (not sure how to type that the 2 is the the little base number) Click here to see answer by Earlsdon(6287)   Question 174256: x^2 + 2^x = 100 I know the answer is 6, but have no idea how to solve this. I know how to graph it to get an approximation. I know how to use iterative methods, and Excel. Is there a way to find an exact solution? Click here to see answer by solver91311(16868)   Question 174245: Hello, can you please help me with this. I have no idea of the steps I need to solve this. Thanks so much! 4. You have $760,000 in your bank account. The interest rate in your account is 5%. Solve for the following: a. How much interest will you accumulate if interest is compounded annually over the next five years? b. How much interest will you earn in your account over the next five years with continuous compounding? You can use a scientific calculator or the =Exp() function in Microsoft Excel. Click here to see answer by solver91311(16868)   Question 173879: log15 to the 8x power=log53 Click here to see answer by solver91311(16868)   Question 174246: Can you please help me with this? Thank you so much! Take the current amount you have in your checking or savings account. Suppose you have a choice of keeping your money for five years in a savings account with a 2% interest rate, or in a five year certificate of deposit with and interest rate of 4.5%. Calculate how much interest you would earn with each option over five years time with continuous compounding. Assuming $2500 in savings. Click here to see answer by solver91311(16868)   Question 174377: 4logx-6log(x+2) could you explain to me out to make it a single logarithm please. Click here to see answer by stanbon(57224)   Question 174376: write the expression as a single logarithm: 2logbw+3logby Click here to see answer by stanbon(57224)   Question 174376: write the expression as a single logarithm: 2logbw+3logby Click here to see answer by josmiceli(9652)   Question 174387: Click here to see answer by kamallohia(18)   Question 173582: Calculate the values of x and y Click here to see answer by Edwin McCravy(8880)   Question 173597: . Calculate the values of x and y Click here to see answer by Edwin McCravy(8880)   Question 174799: log(base2)log(base3)log(base4)2^n=2 I don't understand how to solve this. Click here to see answer by stanbon(57224)   Question 174791: If a telephone network is designed to carry N telephone calls simultaneously, then the number of switches needed per call must be at least log_2 N. If the network can carry 10,000 calls simultaneously, how many switches would be needed: a) For one call? b) For 10,000 simultaneous calls? Click here to see answer by stanbon(57224)   Question 174793: If ((log_3)2) = x, simplify : Log_3 (6(square root 2)) Click here to see answer by jim_thompson5910(28476)   Question 174794: Solve the equation to the nearest thousandth: log_2x+log_4x=5 Click here to see answer by Alan3354(30968)   Question 174792: Write as a single log and simplify it: Log_4 (square root 40) + log_4 (square root 48) – log_4 (square 15) Click here to see answer by Alan3354(30968)   Question 174880: solve the logarithm 2log3z-log3(z-2)=2 Click here to see answer by jim_thompson5910(28476)   Question 174880: solve the logarithm 2log3z-log3(z-2)=2 Click here to see answer by josmiceli(9652)   Question 174789: If log_8 3=x and log_4 7=y, find an expression in terms of x and y for: 1) log_2 63 Click here to see answer by josmiceli(9652)   Question 174927: log x + log x =log 2x Click here to see answer by Alan3354(30968)   Question 174949: Given that log_2 x=5, evaluate: log_2(4x^2) Click here to see answer by Alan3354(30968)   Question 174949: Given that log_2 x=5, evaluate: log_2(4x^2) Click here to see answer by ankor@dixie-net.com(15625)   Question 174948: Given that log_2 x=5, evaluate: log_2 (x/2) Click here to see answer by stanbon(57224)   Question 174943: ((log_3)s)+log_3(s-2)= 1 Click here to see answer by ankor@dixie-net.com(15625)   Question 174947: If ((log_2)5)=x, simplify: log_2((cubic root 5)/2) Click here to see answer by ankor@dixie-net.com(15625)   Question 174945: If ((log_2)5)=x, simplify: ((Log_2)20) Click here to see answer by jim_thompson5910(28476)   Question 174941: Solve and check: 2logm + 3logm=10 Click here to see answer by jim_thompson5910(28476)   Question 174944: log_2 (2m+4) – log_2 (m-1) =3 Click here to see answer by nerdybill(6948)

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