Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

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Question 83431: evaluate
square root of
4 over 25
Click here to see answer by checkley75(3666)

Question 83469: (2x^3)to the power of -2
Click here to see answer by rapaljer(4667)

Question 83468: how do i do this it is division -42x^10 divided by 7x^6
i am so stuck i cant figure out how to do this thank you so much

Click here to see answer by rapaljer(4667)

Question 83470: This is the very last question on my assignment and I have spent 3 hours on it and have gotten no where, please help!
c. George Lucas pioneered the use of digital movie cameras with the most recent Star Wars film. Assume that Lucas's camera has a swappable 80 GB hard drive (remember: 1 GB = 1024 MB, 1 MB = 1024 KB, 1 KB = 1024 Bytes, and 1 Byte = 8 bits), that it records each pixel in x-bit color, that there are 26 frames recorded per second, and that each frame is recorded in 1600x1200 resolution.
i. Create a polynomial function that gives the number of minutes of video that can be recorded before swapping in a new hard drive, as a function of x (the number of bits used to encode the color of each pixel)
ii. Evaluate this function for x = 32 (32-bit true color)

Click here to see answer by scott8148(6628)

Question 83432: find the time required for an object to fall to the ground from a building that is 1400 ft high. using this formula
t=1/4 square root of s
Click here to see answer by rapaljer(4667)

Question 83433: Use Propery 1 to simplify each of the following radical expressions. Assume that all variable represent positive real numbers
square root of 50
Click here to see answer by rapaljer(4667)

Question 83467: this is division i am not sure of can you help me?
-15x^3+29x^2-27x+39 divided by 3x-4
thanks
Click here to see answer by stanbon(57347)

Question 83429: evaluate if possible
square root of
8
over 27
there is a negative sign in front of the 8 and 27 and in front of the square root sign there is a small 3
Click here to see answer by rapaljer(4667)

Question 83495: Simplify this equation?
x^2+5x+6 divided by x^2-4 multiplyed by x^2-5x+6 divided by x^2-9.
Click here to see answer by stanbon(57347)

Question 83536: How do you factor 6ab-8b
Click here to see answer by ankor@dixie-net.com(15652)

Question 83537: x^2-19x+60=
(x+15)(x-4)
Click here to see answer by checkley75(3666)

Question 83216: I need to find the value of each of the polynomials for the given values of the variable: -x^2-5x-6, x=-3 and x=-2
Click here to see answer by checkley75(3666)

Question 83535: what is difference between 2X2=4XY-3ANDX2-2XY-4
Click here to see answer by checkley75(3666)

Question 83530: I NEED HELP ON POLYNOMIALS. FOR FINALS WE NEED TO KNOW WHAT IS THE DEGREE AND NAME OF IT. MY FIRST PROBLEM SAYS: 5X^2 - 3X^2. I NEED YOU TO HELP ME FIGURE OUT THE DEGREE, THE NAME OF THE DEGREE, AND THE NAME BY TERM.
Click here to see answer by praseenakos@yahoo.com(507)

Question 83531: I AM CONFUSED ON HOW TO ADD AND SUBTRACT A POLYNOMIAL. CAN YOU GIVE ME 1 OR 2 EXAMPLE AND SOLUTIONS ON HOW TO DO THEM. THANK YOU
Click here to see answer by praseenakos@yahoo.com(507)

Question 83571: Write the indicated equation for each geometric solid.

1.)The surface area of a cube with an edge of x centimetres long.
I got the answer s=24x
2.)The volume of a cylinder with an height of 5 metres and a radius of x metres.
I got the answer V=≈x^2*5 ≈ is pie (3.14).
Click here to see answer by gsmani_iyer(180)

Question 83641: Factor each of the following trinomials completely:
x^2-11x-60 Please help me with this one!!!
Click here to see answer by checkley75(3666)

Question 83639: How do I factor the polynomial:
4s+6st-14st^2?
Click here to see answer by checkley75(3666)

Question 83638: Find the GCF for the following sets of terms:
12a^3b^2, 18a^2b^3, and 6a^4b^4
Click here to see answer by checkley75(3666)

Question 83653: Hi, I have my homework already done but I really need to get a good grade [100%] on this so I can raise my grade! I am going to give you each problem and answer that I got and could you please just tell me if they are correct or incorrect. THANK YOU SO MUCH I NEED THIS!
"Find The Product"
1. (5p-6)(5p+6) = 25p[squared]-36
2. (2s+9t)squared =81t[squared]+4s[squared]+36st
"Factor The Polynomial"
3. x[squared]+8x+7 = (x+7)(x+1)
4. -12r[squared]+5r+3 = -(4r+3)(3r+1)
5. -3n[squared]+75 = -3(n+5)(n-5)
6. x[squared]-49 = (x+7)(x-7)
"Solve The Equasion"
7. 21z[squared]+85z-26=0 z= 2/7 , z= -13/3
8. a[squared]-11a+24=0 a= 8 , a= 3
9. 4x[squared]=22x+42 x= -3/2 , x= 7
10. n[cubed]-212n=0 n=0 , n= 11, n= -11
^ 3 answers for that one!

am I 100% right!?
Click here to see answer by scott8148(6628)

Question 83683: Multiply: 7w(2w-3)(2w+3)...I have attempted to figure this one out, so far I have 14w-3 14w+3...am I right so far? How do I complete this problem?
Click here to see answer by stanbon(57347)

Question 83694: Write a polynomial function in standard form with the given zeroes.
4, -1, 0
Click here to see answer by stanbon(57347)

Question 83694: Write a polynomial function in standard form with the given zeroes.
4, -1, 0
Click here to see answer by chitra(359)

Question 83693: Write a polynomial function in standard form with the given zeroes.
3, 5, 5
Click here to see answer by stanbon(57347)

Question 83685: Multiply: (x/3+3/4)(3x/4-3/5)
Click here to see answer by checkley75(3666)

Question 83643: HELP PLEASE...Find all positive values for k for which each of the following can be factored:
x^2+x-k
Click here to see answer by scott8148(6628)

Question 83658: Find the GCF of each product.
60. (6y^2 - 3y)( y + 7)
I get 3y(2y^2 - 1)(y + 7)
GCF 3y
Click here to see answer by checkley75(3666)

Question 83692: Write a polynomial function in standard form with the given zeroes.
4, -1, 0
Click here to see answer by chitra(359)

Question 83680: Multiply (x-10)(x+9)
Click here to see answer by chitra(359)

Question 83699: Solve each equation. Round your answers to the nearest tenth when necessary.
x^3 = 2x^2 + 8x
Click here to see answer by chitra(359)

Question 83698: Solve each equation. Round your answers to the nearest tenth when necessary.
x^3 - 4x^2 - 5x = 0
Click here to see answer by funmath(2925)

Question 83697: Solve each equation. Round your answers to the nearest tenth when necessary.
x^3 - 5x^2 +4x = 0
Click here to see answer by funmath(2925)

Question 83682: multiply using the vertical method:
(2r-3s)(4r^2+6rs+9s^2) What is the vertical method? Please help ;0/
Click here to see answer by Edwin McCravy(8909)

Question 83622: Science and Technology: Fungicides account for 1/10 of the pesticides used in the US. Insecticides account for 1/4 of all the pesticides used in the US.The ratio of fungicides to insecticides used in the US can be written as 1/10:1/4 write this ratio in simplest forms.
Click here to see answer by ptaylor(2048)

Question 83714: Solve by Factoring: x2 + 5x - 6 = 0
What are the solutions for x?
Click here to see answer by funmath(2925)

Question 83703: Solve. (We are working on rational expressions including factoring)
A company that manufactures hospital beds has a fixed monthly cost of $225,000. The average cost per bed, C, for the company to manufacture x beds per month is modeled by the formula
c = 550x + 225,000/x
How many hospital beds can be manufactured per month at an average cost of $800?
Click here to see answer by lekelly(20)

Question 83702: I would like to check my solutions.
Solve the equation and show work (factoring etc...)
x / 2x + 2 = (-2x/4x + 4) + (2x-3/x+1)
Click here to see answer by lekelly(20)

Question 83739: Find each of the following products:
a(a+5)(a-5)
Click here to see answer by lekelly(20)

Question 83740: For each of the following problems- let x represent the number and then write an expression for the product.
The square of 5 more than a number.
I don't understand how to do this.
Click here to see answer by lekelly(20)

Question 83743: Perform the indicated divisions:
x^2-2x-35/x+5
Click here to see answer by lekelly(20)

Question 83744: Perform the indicated divisions:
8x^3-6x^2+2x/4x+1
Click here to see answer by lekelly(20)

Question 83737: Find each of the following squares:
(a)(7p+6q)^2
(b)(w-1/4)^2
How do I do this?
Click here to see answer by lekelly(20)

Question 83741: Geometry: A square has sides of length 3x-2cm. Express the area of the square as a polynomial.
Click here to see answer by lekelly(20)

Question 83745: DIVIDE: 7x^5y^5-21x^4y^4+14x^3y^3/7x^3y^3 I am so confused ;0?
Click here to see answer by stanbon(57347)

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, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835