Questions on Algebra: Logarithm answered by real tutors!

Tutors Answer Your Questions about logarithm (FREE)

Question 271571: log(base2)(x - 2) + 5 = 8 - log(base2) 4
Click here to see answer by edjones(7569)

Question 271636: Solve for x (nearest 10th)
3^ x square root 2 + 4. 3^ x square root 8 -3 =0
Click here to see answer by Edwin McCravy(8999)

Question 271622: Solve for x

log (9 ^ log base3 x+1) + log (2x+3/x+1) = log base4 8
Click here to see answer by jsmallt9(3296)

Question 272077: find all roots of the equation: x^3-x^2-14x+24=0
Click here to see answer by stanbon(57940)

Question 272102: log8x=(2/3)
the 8 is slightly below the word log, does that mean it's the base?
Click here to see answer by scott8148(6628)

Question 272101: logx2=(1/3)
The x is slightly under the word log, does that mean it's the base?
Click here to see answer by jsmallt9(3296)

Question 272075: log7 49
Click here to see answer by jsmallt9(3296)

Question 272323: I do not know what to do next I have tried this problem:
0.5^x-0.25=4 I added 0.25 to both sides so now I have 0.5^x= 4.25
I'm not sure what to do next. In advance: Thank you sooooo much for your help!
Click here to see answer by ankor@dixie-net.com(15745)

Question 272381: (log3(log3 x))=1 sove for x
Click here to see answer by scott8148(6628)

Question 272469: solve:
(log(5x-6))/log(x) = 2

Click here to see answer by dabanfield(803)

Question 272440: is undefined for all values of x such that
(1) x > 1
(2) x greater than or equal to 0
(3) x < 4
(4) x less than or equal to 0
Click here to see answer by Edwin McCravy(8999)

Question 272578: What percent of 55 is 702?
Click here to see answer by stanbon(57940)

Question 273098: 1)Evaluate the logarithms using the change of base formula. Round your result to three decimal places.
log20 5
2)Use properties of logarithms to expand the expression as a sum differences and/constant mutiple of logarithms.
log5 x^2/y^2z^3
3) Condense the expression to logarithm of a single quantity.
3log3 x+4log3 y-4log3z

Click here to see answer by stanbon(57940)

Question 273141: Exponential and Logarithmic Equations:
use mental math to sovle each equation.
1.
2^x=1/8
2.
log(small4)2=x
3.
10^6x=1
4.
solve 5^2x=125
Click here to see answer by edjones(7569)

Question 272460: Find the solution of the logarithmic equation:
log2 (of base 2)(x^2+ 1x-2)=2
Click here to see answer by jsmallt9(3296)

Question 272476: log base 2 multiply (x-2)+log base 2 multiply (8-x)-log base 2 multiply (x-5)=3
Click here to see answer by jsmallt9(3296)

Question 273166: 2^(2x)=11
Click here to see answer by josmiceli(9817)

Question 272530: Find x:
6^x=40
Click here to see answer by jsmallt9(3296)

Question 273295: Given log 15 = B and log 3 = C, Find log 5
I say the answer would be B-C
Click here to see answer by jim_thompson5910(28696)

Question 272536: How di I simplify this equation
2ln6+3ln4-5ln(1/3)
Click here to see answer by jsmallt9(3296)

Question 272775: solve:
logx + log(x-3) = 1

Click here to see answer by jsmallt9(3296)

Question 272856: how evaluate log2/3 27/8
Click here to see answer by jsmallt9(3296)

Question 273500: What is the domain, range, x-intercept and vertical asymptote of the function:
log[base 3] (x-4)
Click here to see answer by jsmallt9(3296)

Question 273810: How do you solve for x when log(base3)(2x-1)=2
Click here to see answer by stanbon(57940)

Question 273812: 2logsqrt(x+10)=log6-(1/2)log9
please show me the steps to solve this.
Click here to see answer by stanbon(57940)

Question 274274: solve: log(x+9)-logx=1 and show work
Click here to see answer by solver91311(17059)

Question 274273: log base of 9 (x^2+12x+17)=2
Click here to see answer by jsmallt9(3296)

Question 273988: Y=(e^(x)-e^(-x))/2 please show me the steps to solve, thanks
Click here to see answer by jsmallt9(3296)

Question 273880: how do solve log6x-3=-4
Click here to see answer by jsmallt9(3296)

Question 274271: graph y=3-log base of 2(2x+5) and give the key points
Click here to see answer by jsmallt9(3296)

Question 274524: solve for x in the equation logxbase3 = 3*x-25
Click here to see answer by Theo(3504)

Question 274525: Hi Tutor,
Can you please explain to me why log(base b)x/log(base b)y does not equal log(base b)x - log(base b)y? Thank you
Click here to see answer by Theo(3504)

Question 274564: I have been asked to take some figures from a 'yield table' of trees. Specifically the trees per ha/ and the diameters. I have then been asked to take the log base 10 of these figures, prior to plotting them on a graph. So in the first line (of many) I have 2309 trees with a diameter of 11 - what should I be doing with these figures. Am I to just move the decimal place?
Thanks
Kenton
Click here to see answer by stanbon(57940)

Question 274804: Use a calculator to evaluate the expression. Round your answer to three decimal places
log 9/8
Click here to see answer by checkley77(12569)

Question 274800: Solve the equation.
3(6 - 3x) = 1/27
Click here to see answer by checkley77(12569)

Question 274801: Use a graphing calculator to solve the equation. Round your answer to two decimal places.
e2x = x + 3
Click here to see answer by jsmallt9(3296)

Question 274722: Hi, pls help me find derivative of following:
1. f(x) =16x+19, find f'(8)=?
2. if f(x)= 2e^(x+1) + e^1, then f'(0) = ?
2. g(x)=(e^x)/(1+3x), find g'(x)=?
4. if f(t)= sq.root of 5/t^7, find f'(t)=?
Thank you,
Click here to see answer by jsmallt9(3296)

Question 274994: log3x^6
Click here to see answer by user_dude2008(1861)

Question 275000: Seth is painting his bedroom. he paints 48% of the room the first day, 24% of the room the second day,12% of the room the third day..how long will take Seth to finish the room?

Click here to see answer by Alan3354(31487)

Question 274802: Find the domain of the function.
f(x) = ln √x
Click here to see answer by jsmallt9(3296)

Question 275070: PLEASE HELP!!
Solve for x:
2log(x) = log(4) + log(x+3)
Solution Set: ______ ?
Click here to see answer by jsmallt9(3296)

Question 275172: Can you help me simplify ?
Thanks!
Click here to see answer by dabanfield(803)

Question 275241: find the domain f(x) = ln(10 - x)
Click here to see answer by user_dude2008(1861)

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, 10846..10890, 10891..10935, 10936..10980