Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 170116: I messed up on my last question, can you please show how to solve this quadratic equation by completing the square not sq. rt prop.
m^2 = 8m + 3

Click here to see answer by nerdybill(7384) About Me 

Question 170115: Can you please show the steps of how to solve this quadratic equation by completing the Square
Click here to see answer by Alan3354(69443) About Me 

Question 170113: Can you please show me the steps of how to solve this equation using the Square Root Property
m^2 = 8m + 3

Click here to see answer by Alan3354(69443) About Me 

Question 170122: Please help me by showing me how to work out this equation using the Square Root Property
3x^2 = 8

Click here to see answer by Alan3354(69443) About Me 

Question 170121: Please show me how to work out this quadratic equation by completing the square
m^2 = 8m + 3

Click here to see answer by jim_thompson5910(35256) About Me 

Question 170120: Please help show me how to solve the quadratic equation by completing the square
z^2 + 8z +9 = 0

Click here to see answer by jim_thompson5910(35256) About Me 

Question 170111: Can you please show me the steps of how to solve this equation using the Square Root Property
3x^2 = 8

Click here to see answer by jim_thompson5910(35256) About Me 

Question 170146: How do you convert functions standard form to vertex form?
Problem: y= x2-4x=6

Click here to see answer by stanbon(75887) About Me 
Question 170146: How do you convert functions standard form to vertex form?
Problem: y= x2-4x=6

Click here to see answer by jim_thompson5910(35256) About Me 

Question 170212: I have tryed these four questions a few times each and have come up with dif answers each time!! I know that I am missing something and was wondering if you could help!! These are practice questions for an upcoming exam! I have to be able to get consistant answers!! Please help if you can!! Thank you..
(x^2 -3)^2 + (x^2 -3) -2=0
"^" indicates "squared"

Click here to see answer by jim_thompson5910(35256) About Me 
Question 170212: I have tryed these four questions a few times each and have come up with dif answers each time!! I know that I am missing something and was wondering if you could help!! These are practice questions for an upcoming exam! I have to be able to get consistant answers!! Please help if you can!! Thank you..
(x^2 -3)^2 + (x^2 -3) -2=0
"^" indicates "squared"

Click here to see answer by scott8148(6628) About Me 

Question 170211: Write a quadratic equation having each of the following solutions
-1/2 and 3/4

Click here to see answer by jim_thompson5910(35256) About Me 

Question 170210: find three consecutive odd integers such that the squar of the thid integer plus the product of the other two integers is 268.
Click here to see answer by nerdybill(7384) About Me 

Question 170220: square root sign 9x+67=x+5 (solve)
Rewrite with a rational exponent small 6 square root sign 19.
Convert to decimal notation 8.87*10^7. I had 8870000000. (I know this is incorrect)
Use rational exponents to write xy small 5*y small 1|6 (1&6 are small numbers)*2 small 1|3 (1&3 are small numbers)
I thank you in advance, for all your help.
I am a student and I am in need of help.

Click here to see answer by stanbon(75887) About Me 
Question 170220: square root sign 9x+67=x+5 (solve)
Rewrite with a rational exponent small 6 square root sign 19.
Convert to decimal notation 8.87*10^7. I had 8870000000. (I know this is incorrect)
Use rational exponents to write xy small 5*y small 1|6 (1&6 are small numbers)*2 small 1|3 (1&3 are small numbers)
I thank you in advance, for all your help.
I am a student and I am in need of help.

Click here to see answer by Edwin McCravy(20054) About Me 

Question 170236: solve by completing the square. 3x^2+12x-9=0
Click here to see answer by Alan3354(69443) About Me 

Question 170239: solve by using the quadratic formula x^2/2-x=3/4
Click here to see answer by Alan3354(69443) About Me 

Question 170240: solve using a graphing calculator x^2+x=-1/4
Click here to see answer by Alan3354(69443) About Me 

Question 170246: find the quadratic function whose vertex is (-1,5) and passing through the point (2,7) and graph the function.
need answer before 12/1/08

Click here to see answer by nerdybill(7384) About Me 
Question 170246: find the quadratic function whose vertex is (-1,5) and passing through the point (2,7) and graph the function.
need answer before 12/1/08

Click here to see answer by scott8148(6628) About Me 

Question 170244: find the quadratic function whose vertex is (-1,5) and passing through the point (2,7) and graph the function.
need answer before 12/1/08

Click here to see answer by scott8148(6628) About Me 

Question 170286: I need help with this word problem I have tried and so has a tutor at school.
Malikka takes a paddleboat 1km upriver against a 4km/hr current then returns downriver with the current, back to starting point. Her whole trip takes 2 hours, write a quadratic equation describing this situation. The unknown is the speed, v, that Mallika would paddle with no current present. Solve. What speed (in km/hr) would Mallika paddle by herself with no current present?

Click here to see answer by stanbon(75887) About Me 
Question 170286: I need help with this word problem I have tried and so has a tutor at school.
Malikka takes a paddleboat 1km upriver against a 4km/hr current then returns downriver with the current, back to starting point. Her whole trip takes 2 hours, write a quadratic equation describing this situation. The unknown is the speed, v, that Mallika would paddle with no current present. Solve. What speed (in km/hr) would Mallika paddle by herself with no current present?

Click here to see answer by nerdybill(7384) About Me 

Question 170300: Hello, I tried to solve the equation 5(square root)x + 1 = 3 by doing 5(sq root) x = 3 and (5(sq. rt.) x) ^ 5 = 3^5 and I my answer is x=243. However, I'm not sure so can you help me please. Thank you
Click here to see answer by checkley77(12844) About Me 
Question 170300: Hello, I tried to solve the equation 5(square root)x + 1 = 3 by doing 5(sq root) x = 3 and (5(sq. rt.) x) ^ 5 = 3^5 and I my answer is x=243. However, I'm not sure so can you help me please. Thank you
Click here to see answer by Alan3354(69443) About Me 

Question 170291: Hello, I've tried to solve this problem t^2/3=4 and my solution was 8 because I put (t^2/3) ^3/2 = 4^3/2 and t= (square root)4^3 = (square root) 64 = 8. Can you help me please? Thank You

Click here to see answer by checkley77(12844) About Me 

Question 170378: This is my problem:
Julian’s beauty Solon has 32 customers for today and 4 beauticians. If it takes 30 minutes to do each customers hair, how many customers will each beautician have to take in order to clear the book for the day.

Click here to see answer by checkley77(12844) About Me 

Question 170429: Expand and if necessary simplify questions:
a. (2a-1)^2
b. (x+11)(x-4)
c. (2x-3)(4x-7)

Click here to see answer by jim_thompson5910(35256) About Me 

Question 170432: Fully factorize:
a. -5mp-30m
b. 4xy-16xy^4

Click here to see answer by jim_thompson5910(35256) About Me 

Question 170445: if a quadratic trinomial cannot be factored, what kind of trinomial is it? Give example and explain.
Click here to see answer by maali40(13) About Me 

Question 170532: Need help!!
x² - 5x + 2 = 0

Click here to see answer by josmiceli(19441) About Me 

Question 170626: I am completely lost in translation. Can someone assist me in solving this question? Thanks alot. This is the last of my homework and I am completely stumped.
Write three quadratic equations, with a, b, and c (coefficients of x2, x, and the constant) as:
Integers
Rational numbers
Irrational numbers

Click here to see answer by stanbon(75887) About Me 

Question 170721: A designer, attempting to arrange the characters of his artwork in the form of a square grid with equal number of rows and columns, found that 24 characters were left out. When he tried to add one more row and column, he found that he was short of 25 characters. Can you find the number of characters used by the designer?
Not sure how to start on this one? I am not good at word problems

Click here to see answer by stanbon(75887) About Me 

Question 170728: Rita rows 12 km upstream and 12 km downstream in 3 hours. The speed of her boat in still water is 9 km/hr. Find the speed of the stream.
These word problems are tough, i appreciate any help!

Click here to see answer by jim_thompson5910(35256) About Me 
Question 170728: Rita rows 12 km upstream and 12 km downstream in 3 hours. The speed of her boat in still water is 9 km/hr. Find the speed of the stream.
These word problems are tough, i appreciate any help!

Click here to see answer by Alan3354(69443) About Me 

Question 170726: Some students planned for a get-together. The budget for food was $500. Five of the students failed to come because of the distance and therefore the cost of food for each member increased by $5. How many students attended the get-together?
Not sure how to do these word problems and will appreciate any help, so far I have a B in class :)

Click here to see answer by jim_thompson5910(35256) About Me 
Question 170726: Some students planned for a get-together. The budget for food was $500. Five of the students failed to come because of the distance and therefore the cost of food for each member increased by $5. How many students attended the get-together?
Not sure how to do these word problems and will appreciate any help, so far I have a B in class :)

Click here to see answer by Mathtut(3670) About Me 

Question 170751: This is the last portion of my homework and my tutor is out of town for the holidays, is it possible that someone can assist me on this? Thank you!
Determine whether the following equations have a solution or not? Justify your answer.
a) x2 + 6x - 7 = 0
b) z2 + z + 1 = 0
c) (3)1/2y2 - 4y - 7(3)1/2 = 0
d) 2x2 - 10x + 25 = 0
e) 2x2 - 6x + 5 = 0
f) s2 - 4s + 4 = 0
g) 5/6x2 - 7x - 6/5 = 0
h) 7a2 + 8a + 2 = 0

Click here to see answer by checkley77(12844) About Me 

Question 170754: If x = 1 and x = -8, then form a quadratic equation whose solution are these values.
Would I begin by saying y=(x+1)*(x-8)=0. I am completely lost.

Click here to see answer by Mathtut(3670) About Me 

Question 170719: Create a real-life situation that fits into the equation (x + 2)(x - 5) = 0 and express the situation as the same equation.
I am stumped on how to create this one, I am a straight a student in psychology and really struggling with this Algebra class, but I have a B and two weeks to go. Please help!

Click here to see answer by Mathtut(3670) About Me 

Question 170776: Write the quadratic equation in standard form with the coefficient of x2 positive. Then, state what the values are of a, b, and c.
x2=3x+1

I need to show work, but am guessing at the answer, due today, help please!

Click here to see answer by Mathtut(3670) About Me 

Question 170775: What type of solution do you get for quadratic equations where D<0?
Give reasons for your answer.
Also provide an example of such a quadratic equation and find the solution of the equation.
I have tried three times and still I am wrong, please help.

Click here to see answer by jim_thompson5910(35256) About Me 

Question 170718: What type of solution do you get for quadratic equations where D<0?
Give reasons for your answer.
Also provide an example of such a quadratic equation and find the solution of the equation.

Click here to see answer by Mathtut(3670) About Me 

Question 170839: I always get lost in word problems, I never know where to begin and with what information. Any help would be greatly appreciated!
Translate the following into a quadratic equation, and solve it the length of a rectangular garden is three times its width if the area of the garden is 75 square meters what are its dimensions?

Click here to see answer by Mathtut(3670) About Me 

Question 170853: Rita rows 12 km upstream and 12 km downstream in 3 hours. The speed of her boat in still water is 9 km/hr. Find the speed of the stream.
word problem for quadratic equations

Click here to see answer by jim_thompson5910(35256) About Me 

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, 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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, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240