Tutors Answer Your Questions about Radicals (FREE)
Question 1112354: The relative growth rate for a certain type of bacteria population is 85% per hour. A small culture has formed and in just 2 hours the count shows to be 12,500 bacteria in the culture. What is the initial number of bacteria in the culture?
Click here to see answer by stanbon(75887) |
Question 1112354: The relative growth rate for a certain type of bacteria population is 85% per hour. A small culture has formed and in just 2 hours the count shows to be 12,500 bacteria in the culture. What is the initial number of bacteria in the culture?
Click here to see answer by MathTherapy(10552)  |
Question 1113774: A man finds that he can reach a certain town in 6 hours by traveling 240 miles on an interstate highway and then changing to local roads for 80 miles. He can also get there by traveling 270 miles on a different interstate then proceeding 40 miles on a local highway. This route saves 1/2 hour. If he averages x mph on interstates and y on local roads, find his average speed on the interstate and on local roads.
Click here to see answer by greenestamps(13200)  |
Question 1114319: Jonathan and Jose could build a shed, working together, in 6 1/2 hours; but Jonathan worked alone for 3 hours and was then joined by Jose, after which they finished the shed in 5 hours. If they were paid in proportion to what the amount of work each accomplished, how should $96 be divided between them?
Click here to see answer by Edwin McCravy(20055)  |
Question 1114318: When weighed in water; run loses .137 of its weight and copper .112 of its weight. If an alloy of tin and copper weighing 18 pounds loses 2.316 pounds when weighed in water, how many pounds of each are there in the piece?
Click here to see answer by ikleyn(52781)  |
Question 1114419: The perimeter of a rectangular city lot was 420 feet. The lot was divided into two equal lots having the same width and half the length of the original lot. Find the dimensions of the smaller lots if their perimeters were 260 feet each.
Click here to see answer by Fombitz(32388)  |
Question 1115553: what is the simplified form of the following expression? assume a and c are both greater than or equal to 0

options are:
a) 7ac(4th root (ab^2))
b) 7(4th root(ab^2))
c) -7(4th root(ab^2))
d) -7ac(4th root(ab^2))
I tried to simplify it but got 14c\sqrt[4]{a^5b^2}-7ac\sqrt[4]{ab^2} which is not an option, what am I doing wrong and what is the real answer?
Click here to see answer by greenestamps(13200)  |
Question 1115878: a sales man earns aweekly basic salary plus a sales commision of 20% of his total sales when his total weekly sales are birr 1000,this total salary for the week is 400.drive the formula describing th erelationship between total salary and sales?
Click here to see answer by Theo(13342)  |
Question 1116203: For my question, I have to rationalize the denominator. Please help me to solve the equation is 17/sqrt 17 (17 over square root 17, I hope I entered that correctly). I have tried several times to do this right and I can't seem to grasp it :( Thank you in advance.
Click here to see answer by Alan3354(69443)  |
Question 1116203: For my question, I have to rationalize the denominator. Please help me to solve the equation is 17/sqrt 17 (17 over square root 17, I hope I entered that correctly). I have tried several times to do this right and I can't seem to grasp it :( Thank you in advance.
Click here to see answer by josgarithmetic(39617) |
Question 1116280: Can you please explain to me step by step (so that I understand better) how to solve this problem? I keep trying and I keep getting the answer incorrect.
The problem is square root 25 DIVIDED by square root 36. I hope I wrote it correctly. Thank you in advance.
Click here to see answer by Alan3354(69443)  |
Question 1116482: Can someone please explain to me how to simplify this expression? I've tried a couple of times and I can't seem to get it. I apologize if this isn't written out correctly.
It's supposed to read with parenthesis around the problem under the square root sign.
Click here to see answer by Alan3354(69443)  |
Question 1119261: A quadratic equation is provided below, where r and s are constants. What are the solutions for x?
rx^2=(1/s)x+3
(a)x=(1/2sr)+-(squarerootof[(1/s^2)+3])/2r
(b)x=(1/2sr)+-(squarerootof[(-1/s^2)-12r])/2sr
(c)x=(s/2r)+-(squarerootof[(-1/s^2)-12r])/2r
(d)x=(s/2r)+-(sqarerootof[(s^2-12sr)])/2sr
Click here to see answer by josgarithmetic(39617) |
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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, 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
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