Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 173854: I need to solve this equation using a quadratic formula can you help?
4x^2=2x-11
Click here to see answer by Fombitz(13828)

Question 173854: I need to solve this equation using a quadratic formula can you help?
4x^2=2x-11
Click here to see answer by solver91311(16897)

Question 173821: Problem # 1: Solve -3x - 4y + 2z = -6
Problem # 2: Solve 4x - 6y + 3z = 8
Problem # 3: Solve y^2 - 16/2y + 6 divided by y -4/ y + 3
Problem # 4: Which of the following ordered pairs is a solution of y =x - 8:
a(20,13) b(12,20) c(12,21) d(20,12)

Click here to see answer by nycsub_teacher(90)

Question 173793: Given the equation kx^2+(k-1)x+2k+3=0 where k is a non-zero integer, find the value of k for which:
(a) one root is the negative of the other.
(b) one root is the reciprocal of the other.
(c) one root is the twice of the other.
Click here to see answer by josmiceli(9698)

Question 173956: This is one main question with several parts. Please help. Thank you,
How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain.
Click here to see answer by vleith(2825)

Question 173792: Given that the roots of x^2+px+q=0 are (alpha) and 4(alpha) show that 4p^2= 25q.
Click here to see answer by solver91311(16897)

Question 173794: The roots of the equation 4x^2-x+36=0 are (alpha)^2 and (beta)^2. Find:
(a) an equation whose roots are 1/(alpha)^2 and 1/(beta)^2 ,
(b) two distinct equations whose roots are (alpha) and (beta).
Click here to see answer by josmiceli(9698)

Question 174050: The measure of the area of a rectangle is 4x2+7x-15. If hedemensions of the rectangle are representd by polynomials, find the demensions of the rectangle and then find its perimeter if each side is increased by 4 units.
Click here to see answer by stanbon(57424)

Question 174047: The measure of the area of a rectangle is x2 -19x+48. If the dimensions of the rectangle are represented polynomials, find the demensions oftherectangle and then find its perimeter.
Click here to see answer by ankor@dixie-net.com(15667)

Question 174096: Find the slope of the equation 7x + 9y = 27.
Click here to see answer by loni(3)

Question 174096: Find the slope of the equation 7x + 9y = 27.
Click here to see answer by Mathtut(3670)

Question 174110: how do you write equations in slope-intercept form and then how can you tell if each pair of lines is parallel, perpendicular, or neither?
y = -4x + 1 and y = -4x - 5
Click here to see answer by Mathtut(3670)

Question 174093: Put the equation 4x - 3y = 21 into slope-intercept form.
Click here to see answer by Mathtut(3670)

Question 174105: Find the product of two consecutive positive even integers is 288. Find the integers.
Click here to see answer by Alan3354(30993)

Question 174106: The sum of the squares of two consecutive even positive integers is 340.Find the integers.
Click here to see answer by checkley77(12569)

Question 174095: Write the equation of the line (in slope-intercept form) that passes through (3,4) and has a slope of 5/3.
Click here to see answer by checkley77(12569)

Question 174094: Driving down a mountain, George finds that he has descended 1800 ft in elevation by the time he is 3.25 miles horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth.
Click here to see answer by checkley77(12569)

Question 174049: The measure of the area of a rectangle is 6x2+13x-5. If the demensions of nthe rectangle are represented by polynomials, find the demensions of the rectangle and then find its perimeter.
Click here to see answer by ptaylor(2048)

Question 174306: divide:
(-x^3+2x^2-2x+3)/(x^2-1)
when i did this my answer was -x+2-3x+5/x^2-1
Click here to see answer by vleith(2825)

Question 174303: How many solutions does the polynomial have?
How many real solution(s) does the polynomial have?
Find all zeros of the polynomial?
f(x)= x^3+x^2+2x+24
**When i did this myself for the first question i put one and for the second question i put one and for the last question my answer was x= 2,-4,-3 but im not sure if it is right.**
Click here to see answer by vleith(2825)

Question 174302: Write a polynomial function of least degree that has real coefficients, the given zeros and a leading coefficient of 1.
4, -4, -3i
Click here to see answer by stanbon(57424)

Question 174352: (x-3)^2+(x+2)^2=17
Click here to see answer by jim_thompson5910(28598)

Question 174428: Questions from a worksheet:
One form of a quadratic function is f(x)= a(x-b)^2 + c. Use this for the following questions.

1. If you wanted to shift the graph of the function down, what would you do?
A. increase a
B. decrease c
C. increase c
D. decrease a

2. If you wanted to shift the graph of the function right what would you do?
A. increase b
B. decrease b
C. increase c
D. decrease a

3. If you wanted to make the parabola narrower, what would you do?
A. increase a
B. decrease b
C. increase c
D. decrease a

This is a different question:
1. If f is a polynomial of degree 2 and g is a polynomial of degree 3, what is the degree of f x g?

Click here to see answer by stanbon(57424)

Question 173042: i'm having trouble finding the vertex and intercept for the above problem. could you please help me understand how to find.
Click here to see answer by midwood_trail(310)

Question 174558: I attempted to help my friend with her homework but I got stumped by this problem as well. She told me the problem was a quadratic equation but it's not in standard quadratic form. Anyways, the problem is:
47816=x^2=450x
Click here to see answer by rapaljer(4667)

Question 174603: how to write this equation in standard form:
y= (x-2)^2 -1
Click here to see answer by Mathtut(3670)

Question 174603: how to write this equation in standard form:
y= (x-2)^2 -1
Click here to see answer by nerdybill(6963)

Question 174611: I'm not sure on how to start the following:
When mineral deposits formed a coating 1mm thick on the inside of a pipe, the area through which the fluid can flow was reduced by 20%. Find the original inside diameter of the pipe.
It also gives me the equations for area of a circle and diameter.
Help is appreciated.
Thank you.
Click here to see answer by checkley77(12569)

Question 174636: Find K so that the equation 2X^2+KX+8=0 has no real number root.
Click here to see answer by MathLover1(6649)

Question 174636: Find K so that the equation 2X^2+KX+8=0 has no real number root.
Click here to see answer by Mathtut(3670)

Question 174670: During a halftime show, a baton twirler releases her baton from a point 4 feet above the ground with an initial vertical velocity of 25 feet per second. Use a vertical motion model to write a function for the height h (in feet) of the baton after t seconds then graph the function and label the vertex.
Please show all work possible and any strategies used in depth. Thank You for your time and help! =) Hope to hear from you soon.
Click here to see answer by Earlsdon(6291)

Question 174631: A processing station was purchased by a company for $10,000. After 4 years it is estimated that the value of the station will be $4,000. If the value in dollors V and the time the station has been in use t are related by a linear equation, find the equation that relates v AND T
Click here to see answer by stanbon(57424)

Question 174688: how do you find the discriminant of each quadratic equation then state the number and type of solutions of 14x^2-10x+21=14?
Click here to see answer by stanbon(57424)

Question 174719: please help me solve this equation.
directions i was given:
use the quadratic formula to solve the equation.
x^2-x+1=0
Click here to see answer by Mathtut(3670)

Question 174719: please help me solve this equation.
directions i was given:
use the quadratic formula to solve the equation.
x^2-x+1=0
Click here to see answer by jim_thompson5910(28598)

Question 174722: help me solve the equation.
directions i was given:
solve the following equation for x.

Click here to see answer by jim_thompson5910(28598)

Question 174730: Give the slope of the line that passes through the points (-9,7) and (-2,-8)
Click here to see answer by nerdybill(6963)

Question 174726: wRITE THE EQUATION OF THE LINE L SATISFYING THE GIVEN GEOMETRIC CONDITIONS.
L has x-intercept (4,0) and Y intercept(0,2)
Click here to see answer by nerdybill(6963)

Question 174729: Give the x-intercept and y-intercept for the equation 8x - 2y = 24. (Put in ordered pair form)
Click here to see answer by nerdybill(6963)

Question 174729: Give the x-intercept and y-intercept for the equation 8x - 2y = 24. (Put in ordered pair form)
Click here to see answer by actuary(112)

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