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

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Question 113705: For the following function, C computes the cost in millions of dollars of implementing a city recycling project when x percent of the citizens participate.
C(x)=1.4/(100-x)
a) Using this model, approximately what is the cost if 60% of the citizens participate?
b) Using this model, estimate the percentage of participation that can be excepted if $4 million is spent on this recycling project. Set up an equation and solve algebraically. Round to the nearest whole percent.
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Question 113680: CAN SOME ONE HELP ME WITH THIS PROBLEM.
FOR THE FOLLOWINH FUNCTION, C COMPUTES THE COST IN MILLIONS OF DOLLARS OF IMPLEMENTING A CITY RECYCLING PROJECT WHEN X PERCENT OF THE CITIZENS PARTICIPATE. C(x)=1.4x/100-x
a. using this model, approximately what is the cost if 60% of the citizens participate?
b.using this model, estimate the percentage of participation that can be excepted if $4 million is spent on this recycling project. Set up an equation and solve algebraically. Round to the nearest whole percent.
Click here to see answer by ankor@dixie-net.com(15649)

Question 114262: index is 4. square root 625n to the 8th power m to the 4th power.
please help!
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Question 114436: I am challenging a question and need your help. Can you tell me what the distance between (5,1) and (3,8) is. Thank you so much!
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Question 114512: Multiply and Simplify
(5+sqrt5)(3+sqrt6)
Multiply and Simplify
(^3sqrtx+4)(^3sqrtx-3)
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Question 114540: I can't seem to come up with the right solution to this problem, can you please help me? This is the problem.
If the product of 4 and the square root of a number is increased by 3 the result is 31. Find the number and show equation.
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Question 114539: I need to check these four problems, can anyone help?
3^sqrt(-27)
sqrt(-3x)^2
(with the square inside the square root sign)
sqrt(-4)
3^sqrt(-1/8)

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Question 114536: Solve
curt(3x+2)-1=1
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Question 114611: SQRT. 2x - 3 = X - 3
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Question 114609: 8 SQRT. 75 + 3 SQRT. 12 - 5 SQRT. 48
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Question 114646:
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Question 114754: Can some one help me please.
Solve by completing the square
x^2 + 8x + 13 = 0
Thank you inadavance.
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Question 114778: solve for x
sqrt x+7+5= x
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Question 114557: The degree three polynomial f(x) with real coefficients and leading coefficient 1, has 4 and 3 + i among its roots. Express f(x) as a product of linear and quadratic polynomials with real coefficients.
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Question 114967: square root of 72 plus square root of 18 minus the square root of -18
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Question 114968: Solve s^2 = 9/4
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Question 115027: PLEASE HELP ME!!!!
Find the domain of the radical function:
f(x)= sqrt3/x+5
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Question 114966: Find the product of the square root of 12b times the square root of 156
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Question 115070: radical 6000
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Question 115070: radical 6000
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Question 115535: What is the square root of 48x^3y^2 all over the square root of 4xy^3 ?
I would really appreciate it!
thank you very much!!!!
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Question 115581: Please help me solve this problem. simplify: 5 radical 27-radical 12-6 radical 3
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Question 115580: Please help me solve this problem. simplify: 6/radical 5+2
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Question 115578: Please help me solve this problem. simplify: 5radical7/radical 3
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Question 115680: Simplify the expression. Rationalize the denominator. Assume that any variables are positive. What is Thanks for the help. Steven
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Question 115579: please help me solve this problem it says to simplify a. 3 radical 54 and b says radical 25x^2y^3
Click here to see answer by ankor@dixie-net.com(15649)

Question 115820:
Evaluate -^3 sqrt 64, if possible
Click here to see answer by checkley71(8403)

Question 116135: (5x+4)to the 2nd power+7=0......use the square root to solve the equation
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Question 116098:
cubed root of 32 x^8 Y^11
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Question 116097:
-2 squareroot of 243 + 8 square root of 48 - square root of 108
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Question 116095: square root of 50x^2y^20
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Question 116095: square root of 50x^2y^20
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Question 116380: radical 50 + radical 18
Click here to see answer by bucky(2189)

Question 116272: Hi,
Please help me simplify this equation:
Cube root of (9-sqrt(4-x))
Thank you
Click here to see answer by ankor@dixie-net.com(15649)

Question 116397:
cube Radical 27a^9b^3
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Question 116396:
radical X + 3 = radical X+27
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Question 116395:
simplify: radical 9XY^2 / radical 27X^3Y
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Question 116427: Simplify the radical expression.
(sqrt3 +5)(sqrt3 -2)
Can someone help? Thanks
Click here to see answer by ankor@dixie-net.com(15649)

Question 116524: solve by factoring
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Question 116581: Write in both rational exponent and radical notations
The fourth power of the cube root of y
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Question 116770: solve by completing the square: x^2-2x-1=0
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Question 116793: X+1=radical 17-4x
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Question 116794: radical 5X+4 = 1+ radical 3X+1
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Question 116791: 2+ radical 3 / radical 3 + radical 5
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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