Questions on Algebra: Logarithm answered by real tutors!

Tutors Answer Your Questions about logarithm (FREE)

Question 588150: log(base 9)(x-5)+log(base 9)(x+3)=1
Click here to see answer by lwsshak3(6490)

Question 588203: log(x-6)- log (x-2) = log 5/x
this is how I attempted to solve the problem
(x-6) - (x-2) = log 5 - log x
x-6-x+2 = 5 - x
-6+2-5 = -y
-9=-x
9=x
I came up with x=9, but my answer key says the answer is 10. Will you please show me how to do this problem?
Click here to see answer by lwsshak3(6490)

Question 587753: Solve for x:
2ln(2x-3)+5=17
Click here to see answer by lwsshak3(6490)

Question 588152: 3^log(base 3)10
Click here to see answer by nerdybill(6958)

Question 588321: solve the equation 9=2^x by applying the natural logarithm function, log.e to both sides
is it a case of x=log9/log2 ???
Click here to see answer by Alan3354(30993)

Question 588450: Simplify by taking roots of the numerator and the denominator. Assume that all expressions under radicals represent positive numbers.
cube root 125x^5/y^3
Here's what I've done so far.
cube root of 125 = 5
cube root of x^5 = x^5/3
cube root of y^3 = y
So to me the answer should read
5x/y*square root x

Click here to see answer by jim_thompson5910(28549)

Question 588580: Having a hard time with these problems:
Evaluate the following:
A) log(13)13^-h
Thanks
Click here to see answer by lwsshak3(6490)

Question 588594: log[b](8) + log[b](x^2) = log[b](x)
Click here to see answer by lwsshak3(6490)

Question 588635: The amount of money in ana ccount with continuoudly compounded interest is given by the formula a=Pen, where P is the principal, R is the annual interest rate, and T is the time in years.calculate to the nearest hundredth of a year how long it takes for an amount of money to double if an interest is coumpounded continously at 6.2%. Round to the nearest tenth
Click here to see answer by stanbon(57290)

Question 588567: log(7)36-log(7)2x=log(7)4
Click here to see answer by lwsshak3(6490)

Question 588476: (1/3)log(base4)*27-(2log(base4)*6-(1/2)log(base4)*81
Click here to see answer by lwsshak3(6490)

Question 588832: If log_b(u)=v then please complete the following equation in terms of n and v:
log_b(1/n)(u)=?

Click here to see answer by lwsshak3(6490)

Question 588822: log(5x+13)=3
Click here to see answer by lwsshak3(6490)

Question 589058: hello, i need help with this question
expand each logarithm
log3 7(2x-3)^2
the 3 after log is lowercase
Click here to see answer by nerdybill(6958)

Question 589064: hey, sorry to bother, i need help with this question
log5 r/s
the 5 is lowercase and the r is above the s, in fraction form
thank you
Click here to see answer by josmiceli(9669)

Question 589907: log[t](r)+log[t](s) expressed in a single longarithm

Click here to see answer by stanbon(57290)

Question 589897: logarithms
6^x-1=8^2-x
Click here to see answer by Alan3354(30993)

Question 589831: 1/2log base3 of 3(243)
Click here to see answer by lwsshak3(6490)

Question 589815: I need help for studying for my test, i need to find the inverse of this function
y= 2 times log base 6 of (x-3)

i need the answer and shown work thank you
Click here to see answer by lwsshak3(6490)

Question 590167: log base 5(1/625)
Click here to see answer by unlockmath(1599)

Question 590236: 1. Show that log8x=1/3 log2x hence solve the equation for x>0
Log2(3x+1) +log8(x-1)3=0

Click here to see answer by lwsshak3(6490)

Question 590476: Find the domain of :
a) f(x)= √3e(^x) - 2
b) g(x)= e^(x-2/x+1)
c) h(x)= ln(x)/√x(^4) + 1
Click here to see answer by stanbon(57290)

Question 590812: How can I rewrite in logarithmic form as below:
1 -10exponent 5 = 100,000
2 - 36 exponent 2/2 = 6 Thanks!
Click here to see answer by jim_thompson5910(28549)

Question 590835: log base 4 time 64x .......... simplify the expresion solve it
Click here to see answer by jim_thompson5910(28549)

Question 590836: log base 4 times 64 to the x power.........sinplify expression
Click here to see answer by jim_thompson5910(28549)

Question 590837: log[4](64^(x))
Click here to see answer by Alan3354(30993)

Question 591068: What is 3 1/3 - 1
Click here to see answer by Alan3354(30993)

Question 590586: Assume that log 2 = .301 and log 3 = .477, Solve
1)log 1/9
2)log 30
3)log 5
4)log 0.006
Click here to see answer by lwsshak3(6490)

Question 589165: log base X(4)+log base X(9)=2
Click here to see answer by lwsshak3(6490)

Question 589004: Solve Equation(Do no use mixed numbers in your answer).
ln(5x-6)+ln(x)=ln(e)
please help me with this problem.I would appreciate it
Click here to see answer by lwsshak3(6490)

Question 588859: Solve Equation
ln(3x+1)/ln(2x-1)=2
Click here to see answer by lwsshak3(6490)

Question 588468: how do you solve log7 x+2 log7 x - log7 3=log7 72
Click here to see answer by lwsshak3(6490)

Question 588829: If log_x^2(9)-log_x(36)=1
What does x equal?
Click here to see answer by lwsshak3(6490)

Question 591284: A.) Which functionis the inverse function of logx?
B.) Which function is the inverse function of 7 to power x?
Click here to see answer by jim_thompson5910(28549)

Question 591314: Find the hydrogen concentration of a solution with a pH of 10.3.
pH=-log[H+]
H+=hydrogen ion concentration in mole per liter of the solution.

Click here to see answer by jim_thompson5910(28549)

Question 591368: Can you help me solve this equation
Click here to see answer by Alan3354(30993)

Question 591513: log base 4 of 3x = log base 32 of 7x

whats x???
Click here to see answer by stanbon(57290)

Question 591523: Find logbase 7 of 12
Click here to see answer by ankor@dixie-net.com(15647)

Question 591698: How do you simplify " 5 ln c - ln d "
Click here to see answer by nerdybill(6958)

Question 591847: I need help in solving this equation: 2log x - log4 = 1/2 log81
Click here to see answer by scott8148(6628)

Question 591852: I am to solve this equation: log(x+4)=5
but I am confused on how to solve since there is not a log on the right side of the equals sign, but there is one on the left.
Click here to see answer by scott8148(6628)

Question 591874: I am trying to solve logarithmic and exponential functions. However, I have gotten stuck. What is the solution to log(3x+7) + log(x-2)=1
Click here to see answer by scott8148(6628)

Question 592064: What is the solution(s) to log base 4 of 4x + log base 4 of (x+3) = 2
Click here to see answer by lwsshak3(6490)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845