Questions on Algebra: Radicals -- complicated equations involving roots answered by real tutors!

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Question 566930: Please help me solve this equation:.
what i have tried is squaring both sides to where i get
the i subtracted the
the answer i got was but my teacher said it was wrong
he has said the correct answer is what did i do wrong?
Click here to see answer by richard1234(5390)

Question 567319: 7n^2=-4n...........I don't understand how to get the answer. My professor says to solve by using any method..i'm just not sure which method to use and how to use it correctly
Click here to see answer by Alan3354(30993)

Question 567403: simplify the following.
i^11 (24/4i^5)

i know that i^11= i but as far as the steps to take in order to simplify the equation I get lost.
Click here to see answer by Alan3354(30993)

Question 567489: square root of y+8 minus square root of y-6 equals -3, Help!
I have tried isolating one of the radicals and raising both sides to the power of the index, then isolating the radical again, but webassign isnt taking my answer! I come up with 6 25/36.
Click here to see answer by ankor@dixie-net.com(15661)

Question 567803: How does 5 times the fourth root of r cubed divided by the square root of r simplify to 5 times the fourth root of r?
Click here to see answer by stanbon(57412)

Question 568317: g(x) = sqrt( -x) I know that that is an imaginary number. I understand that when y = 3, then x = -9. When y = 2, then x = -4, when y = 1, then x = -1. But what is the algebraic process to get those neg x values?
Click here to see answer by Theo(3468)

Question 568723: 4th root of 8 times the 4th root of 16 divided by the 8th root of 2 times the 8th root of 3
Click here to see answer by stanbon(57412)

Question 569285: between which two consecutive integers is the cube root is 11
Click here to see answer by Alan3354(30993)

Question 569284: solve the following radical:
Click here to see answer by lwsshak3(6523)

Question 569282: solve the following radical equation:
Click here to see answer by AnlytcPhil(1278)

Question 569543: Which is the better buy? 16oz bottle of lotion for $2.39
or
24oz bottle of lotion for $3.24?
Click here to see answer by stanbon(57412)

Question 569540: How do uSimplify (5x+4)-(6x+2)?

Click here to see answer by KMST(1874)

Question 570752: hi, i need help on solving the problem, x . i don't understand on how to solve this problem... it would be great if you can help me thank you
Click here to see answer by mananth(12270)

Question 570873: How do you solve ^16 sqrt -7^16?
Click here to see answer by Alan3354(30993)

Question 570947: what is the simplify radical of 686
Click here to see answer by jim_thompson5910(28598)

Question 570944: what is the simplify radical of 686
Click here to see answer by jim_thompson5910(28598)

Question 571201: simplify. radicand sign 3 sqrt 729x^5 over y^3
Click here to see answer by mrjunecarlo1095@ymail.com(10)

Question 571248: Suppose that a cylinder has a volume of 314 in^3 and a radius of 5 in. Find the height of the cylinder. Use pie symbol = 3.14. Here is the given equation,h= Vr^-2/3.14 I know we plug in 314in^3 for V and 5 for r, so h=3.14^3(5^-2)/3.14 The exponents are throwing me off with this equation....Please help me understand this, it is due today. Thank you
Click here to see answer by scott8148(6628)

Question 571247: Solve the equation for r. h= Vr^-2/3.14 I think I might have this figured out, but I'm not certain it is correct. Here is the final answer I got. r=(1/pie symbol*h)/V. All raised to the power of 2
Click here to see answer by scott8148(6628)

Question 571469: √5(√2-√6) I know you have to use the distributive law. I attempted this but I'm now sure if either answer is correct. √10-√30 is this the final answer? or would it be 1/√20?
Click here to see answer by reviewermath(535)

Question 571813: Find the distance between the two points and the midpoint. (2,1) and (-4,-2). Please help!! I am stuck! I guess I don't understand how to figure out the part with the radicals. I got radical 41 but haave no idea what to do after that.
Click here to see answer by KMST(1874)

Question 572272: help with test tomrrow
Click here to see answer by Tatiana_Stebko(1326)

Question 572436: can you help me solve? what is the solution set?
t(5t+2)=0 (need solution set)
Thank you!

Click here to see answer by nerdybill(6963)

Question 572457: Please help me solve I need a solution set
5v^+38v+48=0
Thank you very much
Click here to see answer by ankor@dixie-net.com(15661)

Question 572863: Im having a problem figuring out how to solve this equation. 3/2a-5=-1 rational expressions
Click here to see answer by rfer(12677)

Question 572930: What is the answer to x+2x=3.75
Click here to see answer by Maths68(1474)

Question 572930: What is the answer to x+2x=3.75
Click here to see answer by mathsmiles(68)

Question 572961: what is the answer to x^2-2x over x^2+3x-10...i want to double check my answer
Click here to see answer by nerdybill(6963)

Question 573039: ³√32/³√18=?
Click here to see answer by stanbon(57412)

Question 573044: Help me solve this please:
5 sqrt(27) + sqrt(75) + sqrt(3)

Click here to see answer by stanbon(57412)

Question 573074: x^1/3=x-6
Click here to see answer by Alan3354(30993)

Question 574043: b2(x + a) + 2b( x + a) - 24(x + a)
Click here to see answer by cutechick587(2)

Question 574159: √(x+1)=4
Click here to see answer by Maths68(1474)

Question 574554: I need help to simlify this equation. -3(square root180)-7 (square root 45) What I came up with so far is -3(square root10)*(sqaure root18)-7 (square root9)* (square root5)
Click here to see answer by Earlsdon(6287)

Question 574844: multiply (sqrt11+5sqrt3)(sqrt11-5sqrt3) I just need to know if I am right I thought that the 5sqrt3 would cancel out and I would be left with square root of 11 multiplied by square root of 11 giving me the answer square 121 is this correct?
Click here to see answer by KMST(1874)

Question 575113: Square root8 plus 1 all over square root 2?
Click here to see answer by KMST(1874)

Question 576253: 20x inside a radical minus 5x inside a radical
Click here to see answer by KMST(1874)

Question 577137: From a 220 feet high lighthouse in the Bahamas island of Nassau, a person sees a ship on the horizon. Due to the curvature of earth, how far is the ship from the lighthouse?
Use the formula: d = sqrt[3h/2], where d is the distance in nautical miles and h is the height in feet.
Provide a similar example of when you were close to the beach, or elsewhere. Estimate how high above sea level you are and find how far the ship is from you.
Click here to see answer by solver91311(16897)

Question 577273: What is 3 radical 2 divided by 2?
Click here to see answer by stanbon(57412)

Question 577873: Write the exponential expression 10m^(9/5)in radical form.
Click here to see answer by jim_thompson5910(28598)

Question 578173: 4^5/2
Click here to see answer by Alan3354(30993)

Question 578206: 1/4=3-2x+-1/x+2
Can you please solve the solution to this alegbra equation.
Click here to see answer by ad_alta(240)

Question 578215: Can you please help me solve the equation of
sqrt x+20-x=0
Click here to see answer by richwmiller(9143)

Question 578248: Can you please solve the below algebra problem and explain the steps for me. Please and Thankyou.
if y=sqrt (x-2) fill in the following table for x=0,1,2,3,4. round to three decimal places where necessary.
Click here to see answer by dfrazzetto(277)

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