Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 255750: 2q+3/3 + 3q-4/6 = q-2/2
Is it -5, 5, 2, -2
Click here to see answer by checkley77(12569)

Question 255836: How do you solve -2(x-2)^2+2 ?
Click here to see answer by solver91311(17077)

Question 255930: 1. Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour, and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box office manager uses this information to anticipate staffing needs until the tickets sell out. You provide the manager with a quadratic equation that models the expected number of ticket sales for each day x. ( x=1 is the day tickets go on sale).
Tickets=-0.2x^2+12x+11
a. Does the graph of this equation open up or down? How did you determine this?

b. Describe what happens to the tickets sales as time passes?
c. Use the quadratic equation to determine the last day that tickets will be sold. (Note: Write your answer in terms of the number of days after ticket sales begin.)

d. Will tickets peak or be at a low during the middle of the sale? How do you know?

e. After how many days will the peak or low occur?

f. How many tickets will be sold on the day when the peak or low occurs?

g. What is the point of the vertex? How does this number relate to your answers in parts e and f?

h. How many solutions are there to the equation ? How do you know?

i. What do the solutions represent? Is there a solution that does not make sense? If so, in what ways does the solution not make sense?

Click here to see answer by stanbon(57979)

Question 255936: 2x + 3y = 15 find the slope
Click here to see answer by rfer(12730)

Question 256035: Which of the following are the factors of 4b2 – 16?
A. (2b + 4)(2b + 4) C. (2b – 2)(2b + 4)
B. 2(b – 4)(b + 4) D. 4(b – 2)(b + 2)

Click here to see answer by richwmiller(9144)

Question 256064: 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? Will you explain this to me, please?
Click here to see answer by richwmiller(9144)

Question 256043: Determine the solutions to the quadratic equation -10x2 + 30x - 20 = 0.
Click here to see answer by drk(1908)

Question 256071: I need a step by step breakdown of 4x-6=2x+4 I know x=5 but I would like the steps as to how to get the answer. also -3+8=-2x+10.
Click here to see answer by drk(1908)

Question 256086: solve this
x^2 + y^2 = 100
using completing the square or any other method
tq :)
Click here to see answer by stanbon(57979)

Question 256080: a doctor places an overweight man on a strict diet to reduce his weight from 200 kg to 80 kg . if he loses 3% of his weight every week how long will it take him to reach his target weight.?
Click here to see answer by solver91311(17077)

Question 256116: which is the solution of (6x+4)^2=77
Click here to see answer by jim_thompson5910(28717)

Question 256134:
Click here to see answer by checkley77(12569)

Question 256134:
Click here to see answer by drk(1908)

Question 256134:
Click here to see answer by jim_thompson5910(28717)

Question 256139:
Click here to see answer by checkley77(12569)

Question 256139:
Click here to see answer by richwmiller(9144)

Question 256143:
Click here to see answer by checkley77(12569)

Question 256143:
Click here to see answer by jim_thompson5910(28717)

Question 256143:
Click here to see answer by nakesanderss(1)

Question 256146:
Click here to see answer by jim_thompson5910(28717)

Question 256150:
Click here to see answer by drk(1908)

Question 256154:
Click here to see answer by drk(1908)

Question 256151:
Click here to see answer by checkley77(12569)

Question 256251: solutions for x2 + 10x + 1 = -12 + 2x
Click here to see answer by Greenfinch(383)

Question 256251: solutions for x2 + 10x + 1 = -12 + 2x
Click here to see answer by richwmiller(9144)

Question 256294: The product of two consecutive numbers is 72. Find the two integers. Can someone show me the steps to reach to the answer? Thank you.
Click here to see answer by scott8148(6628)

Question 256296: I am thinking of three consecutive numbers. If I multiply the first with the second and then subtract three times the third, the result is 57. What are the numbers? Can someone please show me the steps to get to the answer? Thank you.
Click here to see answer by edjones(7569)

Question 256306: The perimeter of a rectangle is 14 feet, and the area is 12 square feet. What is the width of the rectangle?
Click here to see answer by Fombitz(13828)

Question 256368: how to figure out the equation of the axis of symmetry from f(x)=4x^2 -12x +5
Click here to see answer by Fombitz(13828)

Question 256419: What is the Quadratic Formula Answer to this:
If the quadratic formula is used to solve 2x(x + 5) = 4, what are the solutions?

and

Solve this quadratic equation using the quadratic formula.
x^2 + 8x - 5 = 0
Click here to see answer by Alan3354(31534)

Question 256431: If you are looking at a graph of a quadratic equation how do you determine where the solutions are?
Click here to see answer by solver91311(17077)

Question 256432: divide 12 into two partssuch that sum of thier squares is > than twice thier product by 4
Click here to see answer by solver91311(17077)

Question 256327: Suppose Charlie O’Brian of the Braves hits a
baseball straight upward at 150 ft/sec from a height of 5 ft.
a) Use the formula to determine how long it takes the ball
to return to the earth.
b) Use the accompanying graph to estimate the maximum
height reached by the ball.
Click here to see answer by richwmiller(9144)

Question 256488: 3(x-5)
when
x^2=49
came across this Problem - and I wanted to know how to work it and how it is supposed to be figured out

Click here to see answer by jim_thompson5910(28717)

Question 256369: express the function f(x) = -5x^2 +20x +2 in vertex form
Click here to see answer by Fombitz(13828)

Question 256511: What is the quadratic equation of x^2+19x+48=0?
Please show work.
Click here to see answer by Fombitz(13828)

Question 256515: What is the quadratic formula of x^2+19x+48=0?

Please show work
Click here to see answer by Fombitz(13828)

Question 256525: a) solve 3x^2 - 5x -13 =0 what are the solution? x=?
b) find the x-intercepts of f(x) = 3x^2-5x-13 Help?
Click here to see answer by drk(1908)

Question 256530: I would like to know how to graph the equation
y=(x+1)^2-2
Click here to see answer by drk(1908)

Question 256533: 12x^2-23x=24

Please help me set to zero, then solve and do quadratic formula.
Click here to see answer by drk(1908)

Question 256556: Please find the quadratic formula of 6x^2+10x-4=0

thank you
Click here to see answer by richwmiller(9144)

Question 256563: I am having trouble with a problem.
W=91.4-(10.5+6.7\/v -0.45v)(457-5t)
110
W = wind chill
v+wind velocity
t=air temp
Using the formula above.
Who will feel colder: a person in Minneapolis at 10F with a 15 mph wind or a person in Chicago at 20F with a 25mph wind?
Click here to see answer by richwmiller(9144)

Question 256575: This is a parabola question. I really need help solving. if you could please show me the work and also tell me how to solve. thank you! :)
without drawing the graph of the given equation determine
A) how many x-intercepts the parabola has
B) whether its vertex lies above or below or on the x-axis.
show your work.
1) y=x(squared) - 5x +6
2) y= -x(squared) + 2x -1
Click here to see answer by richwmiller(9144)

Question 256597: state intervals where the function is positive or negative from f(x)=4x^2-12+5
Click here to see answer by richwmiller(9144)

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