Tutors Answer Your Questions about Exponential-and-logarithmic-functions (FREE)
Question 1005826: Assume that x, y, and z are positive numbers. Use the properties of logarithms to write the expression in terms of the logarithms of x, y, and z. Show step by step.
***In= Natural logarithm***
*** The square root is actually a cube root. Wasn't sure how to do cube root in an equation***
Thanks in advanced!
Click here to see answer by ikleyn(52802)   |
Question 1006070: For a previous problem i sent for help was: Directions are find the hydrogen ion concentration of a solution whose pH is 7.2. Use the formula pH= -log[H^+]. Well to show y'all what i have done was pH= -log[7.2^+] and I put 7.2 in my calculator and pressed log and i got 0.857332496 and I got -0.857 as my answer. Can someone tell me if i did it write
Click here to see answer by josgarithmetic(39620) |
Question 1006069: Can someone help me step by step with this problem. The directions are Find a formula for the inverse of the function described below.
A size 3 dress in Country C is size 37 in Country D. A function that converts dress sizes in Country C to those in Country D is f(x)=x+34. So find a formula for the inverse of the function f(x)=x+34.
Click here to see answer by josgarithmetic(39620) |
Question 1006068: Can someone help me with this problem and show me step by step please? The directions are Find a formula for the inverse of the function described below. An organization determines that the cost per person of chartering a bus is given by the formula C(x)=250+4x/x where x is the number of people in the group and C(x)is in dollars.So find the inverse of the function C(x)=250+4x/x.
Click here to see answer by josgarithmetic(39620) |
Question 1005922: Martin won the 400 meter race in the school sports with a time of 1 minute. The distance was correct to the nearest centimeter. The time was correct to the nearest tenth of a second.
Work out the upper bound and the lower bound of Martin’s speed in km/h. Give your answer correct to 5 significant figures. Thanks!
Click here to see answer by KMST(5328)  |
Question 1006064: Can somebody show me step by step on this problem. The directions are Determine whether the function is one-to-one by graphing and using the horizontal line test and if it is one-to-one, find a formula for the inverse. The problem is f(x)=x-10/x+6.
Click here to see answer by rothauserc(4718)  |
Question 1007113: Good morning, please can you help me in solving this logarithmic equation:
log0.1(2x+6) – log0.1(2x-4) = 2log0.1(x-1)
I believe to follow the rules for solving: (x+3)/(x-2) = (x-1)^2
becoming x^3-4x^2+4x-5=0 which retuns 2 results in complex values and the third Real = 3.2418.....
Thank you very much
RB
Click here to see answer by MathLover1(20850)  |
Question 1007501: I have solved these equations but the directions require me to show work or provide an explanation and I don't know how.Here are the questions:
Write each of the following in exponential form:
1) log3 x = 9
3^9= x
2) log2 8 = x
8= 2^x
3) ln x = 2
e^2 = x
4) log x = 5
10^5= x
Click here to see answer by rothauserc(4718) |
Question 1007501: I have solved these equations but the directions require me to show work or provide an explanation and I don't know how.Here are the questions:
Write each of the following in exponential form:
1) log3 x = 9
3^9= x
2) log2 8 = x
8= 2^x
3) ln x = 2
e^2 = x
4) log x = 5
10^5= x
Click here to see answer by MathLover1(20850) |
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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
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