Questions on Algebra: Logarithm answered by real tutors!

Tutors Answer Your Questions about logarithm (FREE)

Question 324831: Solve for (1/9)^(x-1)=9^(x+5)
Click here to see answer by Alan3354(30983)

Question 324876: 4^x+4=5^2x+5
Click here to see answer by stanbon(57250)

Question 324998: How do I solve for x in this problem? X should equal "0.01".

Click here to see answer by Fombitz(13828)

Question 324999: Knowing that x should equal "0.01", how do I solve this problem for x?

Click here to see answer by Fombitz(13828)

Question 324972: simplify (6e^4x)/(8e)
Click here to see answer by Fombitz(13828)

Question 325186: using the power rule express as a single logarithm 2 log 11+5 log 4
and log7-log3 write as a single logarithm
Click here to see answer by nerdybill(6951)

Question 325237: solve for x
log5(3x-8)=4
Click here to see answer by stanbon(57250)

Question 325243: Simplify
log2(8^pie)
Click here to see answer by jim_thompson5910(28504)

Question 325244: find f^-1(x)
f(x)=e^x-3+2
i know that by putting the negitive on in it will make the neg. in the equation postive and i also know that positive will become neg. but i dont know where to go from there
Click here to see answer by jim_thompson5910(28504)

Question 325247: use the base-changed formula to find four placed decimal approximations. indicate what you are computing.
log5(27)
Click here to see answer by Alan3354(30983)

Question 325248: use the base-changed formula to find four placed decimal approximations. indicate what you are computing
log3(2square root5)
Click here to see answer by Alan3354(30983)

Question 325249: use the base-changed formula to find four placed decimal approximations. indicate what you are computing
log pie(10)
Click here to see answer by Alan3354(30983)

Question 325242: Simplify
log2(5)-log2(15)+log2(24)
Click here to see answer by Alan3354(30983)

Question 325236: solve for x
in(x^2-4x+6)=in(3)
Click here to see answer by Alan3354(30983)

Question 325281: Find all real values of x such that log base 2 of (log base 2 of x)= log base 4 of (log base 4 of x)
Click here to see answer by Theo(3458)

Question 325394: solve for x
log8(6x+14)-log8(x+1)=2
Click here to see answer by nerdybill(6951)

Question 325390: solve for x
log7(3x-5)=2
Click here to see answer by nerdybill(6951)

Question 325392: log6(15-x)+log6(x)=2
solve for x
Click here to see answer by Alan3354(30983)

Question 325519: 70.3=741*ln(5x-1)
Click here to see answer by Fombitz(13828)

Question 325591: log10(x+3)+log10(x-1)=1
Click here to see answer by nerdybill(6951)

Question 325607: b = ( a^x + a^-x )/ 2 find x
Click here to see answer by Jk22(389)

Question 325666: log(120-x)=2
Click here to see answer by stanbon(57250)

Question 325666: log(120-x)=2
Click here to see answer by Raktim(2)

Question 325664: I am having some trouble solving this problem because I forgot how to set it up. I just need the first two steps and I can figure it out from there. I need to solve it using a logarithmic equation: 3^(2x+7)=3^(1/2)
Click here to see answer by stanbon(57250)

Question 325747: Write the equation 7^3 = 343 in logarithmic form.
a. log3 343 = 7
b. log7 343 = 3
c. log3 7 = 343
d. log7 3 = 343
Thank you for your help.
Click here to see answer by stanbon(57250)

Question 325787: Rewrite as an equivalent exponential equation. Do not solve.
log10 0.01 = -2
Click here to see answer by Fombitz(13828)

Question 325889: Rewrite each of the following as an equivalent logaritmic equation. Do not solve
2^-5=1/32
Click here to see answer by stanbon(57250)

Question 326047: solve for x
2log4(x)-log4(5x-18)=3/2
Click here to see answer by stanbon(57250)

Question 326073: for
2e^(3x)=4e^(5x)
solve for x using logarithms.
Click here to see answer by solver91311(16872)

Question 326151: log 2.34
Click here to see answer by Alan3354(30983)

Question 326159: find aproximation
ln 0.000911
and
10^2.4154
Click here to see answer by Fombitz(13828)

Question 326208: Please help!
Solve the following logarithmic expression.
log2(3x+8)=3
Click here to see answer by solver91311(16872)

Question 326240: Please help me to solve.
e^(4-5x)=988
Thank you!
Click here to see answer by stanbon(57250)

Question 326240: Please help me to solve.
e^(4-5x)=988
Thank you!
Click here to see answer by solver91311(16872)

Question 326238: (a) Find the domain and range of the function f(x) = log(8x).
(b) Find the inverse of f(x) = log(x).
f -1(x) =
Click here to see answer by stanbon(57250)

Question 326222: As of July 2003, the population of India was estimated to be 1,050,000,000, with an annual growth rate of 1.47%. If the growth rate remains the same, how large will the population be in 50 years?
Click here to see answer by nyc_function(2733)

Question 326313: Write the equation in its equivalent logarithmic form.

3^-2=1/9

thanks =)
Click here to see answer by AAfter Search(61)

Question 326316: Evaluate the expression without using a calculator.
log7 1 over the square root of 7
thanks for anyhelp
Click here to see answer by jim_thompson5910(28504)

Question 326320: What is log b (base) (5x^5)/(yz^6)
And:
4^2x+3=67
Click here to see answer by user_dude2008(1861)

Question 326295: express as a product
logc(z)^-7
Click here to see answer by Fombitz(13828)

Question 326317: evaluate the expression without using a calculator
9log9 10
thanks again
Click here to see answer by Fombitz(13828)

Question 326404: = 2+
Click here to see answer by solver91311(16872)

Question 326418: log (2x+5)+log (x+1)=1
Click here to see answer by Fombitz(13828)

Question 326418: log (2x+5)+log (x+1)=1
Click here to see answer by solver91311(16872)

Question 326491: g(x)=log base 9 x
x=1000
log base 9 1000
1000=9 exponent y
what is y?
Click here to see answer by Fombitz(13828)

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