Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 313590: 5^(-1)=1
Click here to see answer by Alan3354(30983)

Question 313588: 13. Mr Fu asked a garden designer to make a square flower bed. The cost for paving the border of the flower bed is $20 per metre. The cost of the flowers and soil in the flower bed is $60 per metre^2. If the total cost of making the flower bed is $3500, find the length of a side of the flower bed.
Click here to see answer by ankor@dixie-net.com(15638)

Question 313706: The diagonal of a rectangle is 25 cm and the length iss 10 cm more than twice the width. What is the perimeter of the rectangle?
Click here to see answer by mananth(12270)

Question 313705: the local orchard has just opened a new plot of land for strawberry picking that is 500 square feet. If the length is 20 feet longer than the width, what are the dimensions of the strawberry patch?
Click here to see answer by mananth(12270)

Question 313587: 11 It is given that -1/2 is a root of the equation 10x^2-9x+k=0, where k is a constant. Find
(a) the value of k
(b) the other root
Click here to see answer by ankor@dixie-net.com(15638)

Question 313865: solve using quadratic formula:
1/4x^2+17/4=2x
Click here to see answer by stanbon(57246)

Question 313875: If the roots of a quadratic equation are -4 and 1, write the equation in ax^2+bx+c=0
Click here to see answer by solver91311(16868)

Question 313898: Graph the quadratic equation
y = x^2+ 2x
Click here to see answer by rapaljer(4667)

Question 313975: A baseball player throws a ball from the outfield toward home plate. The ball's height above the ground is modeled by the equation y =-16x^2+48x+6, where y represents height, in feet, and x represents time, in seconds. The ball is initially thrown from a height of 6 feet. how many seconds after the ball is thrown will it again be 6 feet above the ground? what is the maximum height, in feet, that the ball reaches?
Click here to see answer by solver91311(16868)

Question 313972: a man invested a total of $15000 in two venture..in one he made profit of 8% and in other 4% loss..his net income from the two venture is 240$..how much did he invested in each venture?
Click here to see answer by checkley77(12569)

Question 313962: find the roots of 4x^2=3x+2 to the nearest hundreth.
Click here to see answer by checkley77(12569)

Question 314018: ) Two cars leave an intersection. One car travels north; the other east. When the car traveling north had gone 9 miles, the distance between the cars was 3 miles more than the distance traveled by the car heading east. How far had the eastbound car traveled?
Click here to see answer by ankor@dixie-net.com(15638)

Question 314163: i need help finding the discriminant of the problem 2x2+4x+2=0
Click here to see answer by Fombitz(13828)

Question 314311: Hey, I really need help with this one.
Solve.

Click here to see answer by rapaljer(4667)

Question 314468: I need to factor this problem, i am having a hard ime: a^5-625a
Click here to see answer by nerdybill(6950)

Question 314468: I need to factor this problem, i am having a hard ime: a^5-625a
Click here to see answer by malaydassharma(59)

Question 314303: 1. m^2-14m+49=0 3.7c^2-2c=1

2. 8x^2+7x-3=0 4. .3k^2-.6k=2.4

5. 3x^2+4x-2=0
these are 5 different problems.
Click here to see answer by Fombitz(13828)

Question 314466: 4x^2+4sqrt3x+3=0
Click here to see answer by Fombitz(13828)

Question 314466: 4x^2+4sqrt3x+3=0
Click here to see answer by eshomali(33)

Question 314607: Jack throws a ball straight up in the air. The equation, h(t)= -16tsquared+64t+5 gives the height (in feet) of the ball from the ground t seconds after it is thrown. How long does it take for the ball to hit the ground?
I have already figured out the maximum height, I think, as 75 feet. Which takes 5 seconds.
Thanks.
Click here to see answer by texttutoring(324)

Question 314642: 3(x-2)^2=48
Click here to see answer by Fombitz(13828)

Question 314639: x square root + 25 x + 25 =9
Click here to see answer by Fombitz(13828)

Question 314826: SOLVE BY USING QUADRATIC EQUATION
FIND THE CONSECUTIVE INTEGERS SUCH THAT THE SUM OF THEIR SQUARES IS 245
PLEASE HELP I HAD QUESTIONS LIKE THIS ON MY FINAL BUT I COULD NOT UNDER STAND HOW TO WORK THIS PROBLEM
Click here to see answer by mananth(12270)

Question 314799: Please help me with this problem. Perform the requested operation or operations
f(x)=4x+11,g(x)==5x-1 find (f g)(x). WHere it says Find which is underlined there is a small "o" in between the f and G Thank you
Click here to see answer by malaydassharma(59)

Question 314904: 5x^2-3x+3=0. use the quadratic formula
Thank you
Click here to see answer by Fombitz(13828)

Question 314904: 5x^2-3x+3=0. use the quadratic formula
Thank you
Click here to see answer by solver91311(16868)

Question 314958: Trying to figure out this word problem...A frog leaps from a lily pad into the air with an initial vertical velocity of 20 feet per second. Use the equation h=16t to the second+vt+s to determine how long the frog is in the air. Thanx!
Click here to see answer by solver91311(16868)

Question 314981: If you are looking at a graph of quadratic equation how do you determine where the solutiions are?
Click here to see answer by solver91311(16868)

Question 314998: Find all the value of h such that the quadratic equation has no real solutions. Answer must be an equality or inequality in terms of h.
6x^2-4x+h=0
Click here to see answer by scott8148(6628)

Question 315180: Solve this quadratic equation using the quadratic formula.
x2 + 8x - 5 = 0

Click here to see answer by Fombitz(13828)

Question 315258: A sandbag falls out of a hot air balloon that is 144 feet above the ground how long does it take for the sandbag to reach the ground?
Click here to see answer by nerdybill(6950)

Question 315279: For what value of b will the line y=-2x+b be tangent to the parabola y=3x^2+4x-1
Click here to see answer by Fombitz(13828)

Question 315241: A rectangular pool has dimensions of 40 ft. and 60 ft. The pool has a patio area around it that is the same width on all sides.If the patio area equals the area of the pool, how wide is the distance from the pool edge to the patio edge?
If x represents the width of the patio, then which of the following equations could be used to solve the word problem?

Click here to see answer by checkley77(12569)

Question 315287: For what value of b will the line y=-2x+b be tangent to the parabola y=3x^2+4x-1
a method requiring the quadratic formula and substitution is required
Click here to see answer by Fombitz(13828)

Question 315118: Describe a real scenario of the application of a quadratic equation. First find an application example that uses the QE (for example, find the dimensions of the maximum area or volume).
-Find out a real problem
-Define variables
-Establish a responding quadratic equation
-Solve the equation
-Explain what is the reasonable solution between the two solutions of the quadratic equation
-Indicating an optimal value
Click here to see answer by solver91311(16868)

Question 315345: Can someone please help?
3x^2+8x-2=0
1. Solve using Quadratic formula
2. Solve using completing the square
3. Tell which method you prefer and why
Click here to see answer by Edwin McCravy(8882)

Question 315340: Find the geometric mean of 4, _____ , 196
A. 28
B. 7 or -7
C. 7
D. 28 or -28
Click here to see answer by Fombitz(13828)

Question 130760: Solve

Find the x-intercepts of
Click here to see answer by janjan440(1)

Question 315549: Why do you factor a quadratic equation before you solve?
Click here to see answer by ichudov(499)

Question 315566: Solve for x:
4x^2+9x=9
please show work
Click here to see answer by jim_thompson5910(28504)

Question 315573: 7x^2-3x-3=0
Click here to see answer by jim_thompson5910(28504)

Question 315574: Solve (u-5)^2-16=0,where u is a real number.
Simplify your answer as much as possible.
If there is more than one solution, separate them with commas

Click here to see answer by jim_thompson5910(28504)

Question 315576: Find the roots of the quadratic equation
x^2+8x+15=0
Click here to see answer by jim_thompson5910(28504)

Question 315575: Solve the equation for w
(w+1)^2=2w^2+6w+5
Click here to see answer by jim_thompson5910(28504)

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