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 784638: how would you solve -2 to the 5th power
Click here to see answer by waynest(281)

Question 785014: Given the equations, rewrite each as a quadratic equations in u, where u = e^x.
Solve for u first then for x
1) e^2x - e^x =6
2)e^-2x - 3e^-x = -2
Click here to see answer by fcabanski(1391)

Question 785301: The problem says'Simplify each expression, use only positive exponents'
(2r^-1^s^2^t^0^)^-2^
____________________
2rs
the ^ sign represents the exponents for example ^3^ is an exponent in the problem. the exponent -2 is at the end of the parenthesis in the numerator ONLY. Please help. Thank you!
Click here to see answer by KMST(5328)

Question 789056: Use change of base formula-
3 to x power=733
Click here to see answer by Alan3354(69443)

Question 789346: Approximate f(x)to 4 decimal places-
f(x)= e power of x + e power -x/2
x= -0.1
Click here to see answer by Alan3354(69443)

Question 790544: Find the logistic function f with the given properties. f has limiting value 10 and passes through (0, 1) and (1, 2). HINT [First find A, then substitute.]
F(x)=
Click here to see answer by stanbon(75887)

Question 790542: Convert the given exponential function to the form indicated. Round all coefficients to four significant digits.
f(t) = 6(0.981)^t f(t) = Q0e^−kt
f(t)=
Click here to see answer by solver91311(24713)

Question 790540: Convert the given exponential function to the form indicated. Round all coefficients to four significant digits.
f(t) = 3.5(1.004)^t f(t) = Q0e^kt
f(t)
Click here to see answer by solver91311(24713)

Question 792749: ln e^(log(x+1)+log(x-2)) = (1/2)e^(ln(2)), what is x?
Click here to see answer by psbhowmick(878)

Question 792749: ln e^(log(x+1)+log(x-2)) = (1/2)e^(ln(2)), what is x?
Click here to see answer by lwsshak3(11628)

Question 792856: I am having trouble with a problem. I am not sure if I got the right answer and I was wondering for some reassurance. The problem is 0= -x^4.. the answer I got was x=0, but I am unsure.
Click here to see answer by stanbon(75887)

Question 793133: Not sure how to make the "o" smaller than what I have it....
find (fog(x): (gof)(x): and (fog)(2)
f(x)=2x. g(x)=x+7
Click here to see answer by Cromlix(4381)

Question 793393: Write the answer in scientific notation, c*10^n, with c rounded to two decimal places.
Question 1) 1.357*10^12 / (4.2*10^2)*(6.87*10^-3)
To simplify:
Question 2) (u+v^-2)^-1
Question 3) (a+b)/ba^-1 - ab^-1

Click here to see answer by Alan3354(69443)

Question 795457: For the function
f(x) = 5x,
find the function value at the indicated point.
f(3)
Click here to see answer by Alan3354(69443)

Question 796350: can someone help me solve e^(ln2x+2ln3x)+e^ln3 n does ln(e^x*e^2) =2x????
Click here to see answer by Alan3354(69443)

Question 796362: can someone help me solve the equation e^2lnx +3e^ln2x... is it the same as x2+2x^3 and if not explain????
Click here to see answer by Alan3354(69443)

Question 796362: can someone help me solve the equation e^2lnx +3e^ln2x... is it the same as x2+2x^3 and if not explain????
Click here to see answer by solver91311(24713)

Question 796708: what is the result of 8(-9)+3(-2)^2
Click here to see answer by luke94(89)

Question 797285: 1. Write an Assembler Program using the Emu8086 that will input a string of lower case letters from
the keyboard, store the string in memory, and then display the equivalent UPPER case letters.

2. Modify your program above so the input string can contain a combination of both UPPER and
lower case letters and the output will be the string in reverse case.

3. Modify your program above so the input string can contain both UPPER and LOWER case letters
and the space character and the output will be the reverse case string.

4. Further modify your program (above) so the output will be the reverse case and also the reverse
order. For example:

Input AbC_DeF Output: fEd_cBa

Click here to see answer by solver91311(24713)

Question 797389: how do solve (3x+2y+z)-(-x+5z-3y)
Click here to see answer by Alan3354(69443)

Question 798493: ayuda con la resoluci�n de esto 5 problemas de esta direcci�n:
http://www.stewartmath.com/dp/DP-CH-4-a.pdf
Click here to see answer by josgarithmetic(39620)

Question 797917: simplify the expression log 0.1= or expression is underfined

Click here to see answer by tommyt3rd(5050)

Question 799353: Use the function to evaluate...
F(x)=2x^2-3x+7 find f(-2)

Click here to see answer by solver91311(24713)

Question 799861: solve using natural logs
2^(x/2) = 5
I think it would be 2ln(5)/ln(2). Is that correct? If not how do you solve it?
Click here to see answer by DrBeeee(684)

Question 800014: Can you solve a system of equations of
4=a(b)^0
1=a(b)^2
Click here to see answer by mananth(16946)

Question 800583: x^-8=1/16
slove for x

Click here to see answer by Alan3354(69443)

Question 802222: How to find the no of digits in the square of a number.ex.find the number of digits in square of 4
Click here to see answer by KMST(5328)

Question 802881: log 9 = log x^2
square root 9 = square root x^2
x = 3, x = -3
Question: x = 3 is an answer but on x = -3 is the -3 squared to = 9 or is just the 3 squared and the negative is put put in front so the answer would be -9 and therefore I cannot put x = -3 as an answer. Are 3 and -3 the answer or just 3?
Click here to see answer by josmiceli(19441)

Question 803292: If 9^x-1 = 7 then what is 3^2x+3
The ^'s mean exponents
Click here to see answer by Alan3354(69443)

Question 803297: If 9^x-1 = 7 then what is 3^2x+3
The ^'s mean exponent and the 2x+3 at the end is ALL part of the exponent of 3. So it should belike 3 TO THE POWER OF "2x+3"
Click here to see answer by josgarithmetic(39620)

Question 803291: Find all solutions to the equation 3 * 9^t - 82 * 3^t + 27 = 0
Click here to see answer by KMST(5328)

Question 803731: log(x-1) log(x 1) = log(x-1)(x 1)
Click here to see answer by Edwin McCravy(20059)

Question 803852: what is the answer of (x-3)^2 when combining like terms?

Click here to see answer by waynest(281)

Question 804051: 1/2(log x + log y)
Click here to see answer by josmiceli(19441)

Question 804203: Please help me solve this problem. Find the equation for the exponential function that pass through the given pair of points. (1,3.2) (3,.2)
Click here to see answer by solver91311(24713)

Question 804477: (Root of 256)^(2x +3) = (1/64)^(x-5)
(256^1/2)^(2x+3)=(1/64)^(x-5)
(256)^(x+1/2)
Click here to see answer by stanbon(75887)

Question 804477: (Root of 256)^(2x +3) = (1/64)^(x-5)
(256^1/2)^(2x+3)=(1/64)^(x-5)
(256)^(x+1/2)
Click here to see answer by erica65404(394)

Question 804634: What is the answer for 4x squared +2x to the power of 5 + 2x cubed
Click here to see answer by solver91311(24713)

Question 804777: I need help solving this problem: ln y - ln 2 + ln square root x

Click here to see answer by erica65404(394)

Question 804800: I need help solving : ln(x^2 - 9) - ln(x+3)
Click here to see answer by erica65404(394)

Question 805686: In favourable BREEding conditions , a colony of insects can multiply 10 fold every three weeks. IF there are now 500 insects in the colony, express the number of insects N as a function of elapsed time W weeks.
Can you please help me out? Thanks so much in advance:)
Click here to see answer by josgarithmetic(39620)

Question 806279: Can anybody solve log2 x + log2(x − 2) = 3 those are log base 2
I tried following instructions and end up with because they say I'm supposed to square the 3, but I don't know if that's right
Click here to see answer by solver91311(24713)

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