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 507547: SOLVE Logbase5(1/25)=x

Click here to see answer by nerdybill(7384)

Question 509385: 5^x=2e^(x+1) Solve for x
Click here to see answer by swincher4391(1107)

Question 510890: how do i solve the equation: 500/100-e^x/2=20
Click here to see answer by Alan3354(69443)

Question 511098: hh4.64^4
Click here to see answer by Alan3354(69443)

Question 513253: (5s)^0
Click here to see answer by solver91311(24713)

Question 513557:

Click here to see answer by kingme18(98)

Question 513615: Which is greater ?
1)
2)
3)
4)
Click here to see answer by stanbon(75887)

Question 515218: i(t)=60000/1+be^-kt
Suppose that 1000 poeple were initially infected. Find b. Let t=0
Click here to see answer by stanbon(75887)

Question 515558: Draw an exponential graph that is increasing or decreasing and goes thru (-2,100). Write its exponential function that could be represented by your graph.
Click here to see answer by ankor@dixie-net.com(22740)

Question 516309: evaluate the expression: (5^3 * 5^-4)^-3
Click here to see answer by stanbon(75887)

Question 517040: what is the simplified answer to: log₈32
Click here to see answer by stanbon(75887)

Question 518973: Please help me solve this problem:
Click here to see answer by scott8148(6628)

Question 519417: P^-5
Express using positive exponent
Click here to see answer by algebrahouse.com(1659)

Question 519416: (32xy)^-2/9
Rewrite positive exponents
Click here to see answer by user_dude2008(1862)

Question 519416: (32xy)^-2/9
Rewrite positive exponents
Click here to see answer by stanbon(75887)

Question 522265: 2^(x+1)+2^(x-1)=5 2^(x-1)
WHY?
Click here to see answer by solver91311(24713)

Question 522325: simplify: 192 to the fifth root.
Click here to see answer by micahpuff(13)

Question 522839: What would (3/4) to the negative second power be
Click here to see answer by Alan3354(69443)

Question 524109: Express the answer in both scientific and decimal notation.(9.5 x 10^3)^2
Click here to see answer by stanbon(75887)

Question 524128: express the answer in scientific and decimal notation. (7.2 x 10^5)(8.1 x 10^3)
so far i have 7.20000 and 8.100 what do i do next or is that part even right?
Click here to see answer by mananth(16946)

Question 524166: 2 ln(-x)+7 = 14
Click here to see answer by stanbon(75887)

Question 524112: 4-2.7

Click here to see answer by rfer(16322)

Question 524732: How do you solve for x?
e^4-3x=5-2x
To the nearest hundreth please.

Click here to see answer by stanbon(75887)

Question 525050: Please help me get this!!
Find the exponential function f(x)=ab^x that goes through (0,9) & (4,25)
Please show me the steps, so I can learn!!
Thanks so much :-)
Click here to see answer by solver91311(24713)

Question 525293: write the quadratic function in standared form y=(x-4)(x-2)
Click here to see answer by solver91311(24713)

Question 526590: A certain radioactive substance has a half-life of 400 years. If 60 kg is accidently released when will 0.25 kg remain? (assumming it decays continuously)
Please help me with this one, I'm not even sure where to start! Don't you just love the assignments we get before we actually learn the material!! I hate to ask for help, but I have no idea how to set this up and calculate it!
Thank you,
Tracy
Click here to see answer by scott8148(6628)

Question 526973: log(X+2)-log(2X+1)+log X
Click here to see answer by josmiceli(19441)

Question 527863: Write the equation in its equivalent logarithmic form.
15^3=y
Click here to see answer by jim_thompson5910(35256)

Question 528625: please help solve this equation:
i have tried using the log power rule but get to x-6= 10^2 and am told the answer is 10^5
Click here to see answer by scott8148(6628)

Question 528806: Dad dreamed that he put $1 on the first square,$2 on the second, $4 dollars on the third, and so on, doubling the amount each time.If it costs $65,535 to cover all the squares,how many squares were in Dad's dream?
Click here to see answer by zoomkaboom4(62)

Question 528949: Simplify the expression showing every step.
(-2p^4q^3r)^3
Click here to see answer by Alan3354(69443)

Question 529278: Please help me rewrite this using the product, quotient and power rules:

Click here to see answer by KMST(5328)

Question 529392: 4log5(x+3)-log5(x-18)-log5(x-1)
Click here to see answer by josmiceli(19441)

Question 529390: Determine the power gain, G, in decibels, for an amplifer with output P0 of 20 watts and an input Pi of 1.5 watts. round to five decimal places
G=log(Po/Pi)^10
Click here to see answer by ankor@dixie-net.com(22740)

Question 529709: how would u solve x^2-25?

Click here to see answer by Alan3354(69443)

Question 529804: How do you change y=ab^-x into y=ab^x?
Example: y=(0.5)(8)^-x
Click here to see answer by jim_thompson5910(35256)

Question 530286: I need you help with this question:
The change in the population of a township founded in 1930 can be described by the function P(t)=10000. At what rate is the population changing every year?
Ps: t is on the same line like 0.02, means 0.02 times t.
Click here to see answer by ankor@dixie-net.com(22740)

Question 530945: 1/3^(2x+6)=9^(x-4)
really need steps for this. It's been years since I've had Algebra and trying to help kiddo. Thanks
Click here to see answer by scott8148(6628)

Question 530943: x=log3 cube root of 81
Trying to help kiddo and I'm clueless. Thanks!
Click here to see answer by scott8148(6628)

Question 532358: is the answer to 2^(x+1)=5^(1-2x) x=(ln 2+ln 5)/(ln 2-5ln2)?
Click here to see answer by stanbon(75887)

Question 532358: is the answer to 2^(x+1)=5^(1-2x) x=(ln 2+ln 5)/(ln 2-5ln2)?
Click here to see answer by KMST(5328)

Question 532366: I am not sure how to answer this 9^x-3^(x+1)+1=0
Click here to see answer by stanbon(75887)

Question 533276: factor p^4-256
Click here to see answer by scott8148(6628)

Question 533693: Find the value of the expression:
8
Click here to see answer by stanbon(75887)

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