Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 40440: x^2=5x+2
Click here to see answer by Nate(3500)

Question 40361: The hypotinuse of a right triangle is 8cm long. One leg is 2 cm longer than the other. find the length of the longer leg to the nearest tenth.
Thank you

Click here to see answer by Nate(3500)

Question 40499: Could someone please help explain to me how to figue this problem?
h(x) = -3x^2
I need to state the domain and range of this quadratic function as well as its solution set in interval notation. Any ideas?
Click here to see answer by Nate(3500)

Question 40359: If the area of a room is 55 square feet, find the length and width of the room.
Can u show me how i would solve this please?
THANK YOU FOR YOUR TIME.
Click here to see answer by checkley71(8403)

Question 39596: looking desperately for the answer to this:
6x to the second power - 12x - 18 = ????
Please help... thank you, krista m pooler
Click here to see answer by Nate(3500)

Question 39596: looking desperately for the answer to this:
6x to the second power - 12x - 18 = ????
Please help... thank you, krista m pooler
Click here to see answer by ikdeep(226)

Question 40513: what is the easiest way of geetting use to equar=tions
Click here to see answer by checkley71(8403)

Question 40537: Find the x intercepts of y=x^2-4x+4
Click here to see answer by Nate(3500)

Question 40535: The demand and supply equations for a certain item are given by:
D=-5p+40
S=-p^2+30p-8
What is the equilibrium price?
Click here to see answer by Nate(3500)

Question 40536: A rectangular garden is to be surrounded by a walkway of constant width. The garden's dimensions are 30 ft. by 40 ft. the total area, garden plus walkway, is to be 1800 ft^2. What must the width of the walkway be to the nearest hundreth?
Click here to see answer by Nate(3500)

Question 40546: please help
what are the factors of ?
Click here to see answer by Nate(3500)

Question 40546: please help
what are the factors of ?
Click here to see answer by checkley71(8403)

Question 40545: please help
what are the factors of ?
Click here to see answer by Nate(3500)

Question 40544: please help
what are the factors of ?
Click here to see answer by checkley71(8403)

Question 40544: please help
what are the factors of ?
Click here to see answer by Nate(3500)

Question 40544: please help
what are the factors of ?
Click here to see answer by Earlsdon(6290)

Question 40543: please help
what are the factors of ?
Click here to see answer by Nate(3500)

Question 40547: please help
what are the binomial factors of ?
Click here to see answer by checkley71(8403)

Question 40547: please help
what are the binomial factors of ?
Click here to see answer by stanbon(57422)

Question 40548: please help
find the value or values of p in the quadratic equation
Click here to see answer by checkley71(8403)

Question 40555: please help
find the possible value or values of y in the quadratic equation ? PLEASE HELP
Click here to see answer by josmiceli(9697)

Question 40557: Two resistors,when connected in series,have a total resistance of 40 ohms.When connected in parallel their total resistance is 8.4 ohms.If one of the resistors has a resistance of Rx ohms:
(a) show that Rx^2-40Rx+336=0
&
(b)calculate the resistance of each.
answers ( 12 ohms,28 ohms)
Click here to see answer by josmiceli(9697)

Question 40549: please help
with the equation I know you have to rewrite it to get the proper form...but then the negative is in the front, so what would I do next?
Click here to see answer by stanbon(57422)

Question 40560: Carlos scored 15 more points than John in the baseball game. If the product if the two point totals is 154, how many points did each boy score?
Click here to see answer by stanbon(57422)

Question 40562: The length of a rectangle is 8 feet longer than its width which has the same dimentions as the sides of a square. If the area of a square is equal to 160 square feet more than the area of its square, what are the length and width of the rectangle?
Thank You.
Click here to see answer by stanbon(57422)

Question 40563: Two workers can trim 400 meters of hedge in 10 hours. how long will it take 5 workers to trim 600 meters of hedge?
______hours.
Thank You.
Click here to see answer by stanbon(57422)

Question 40561: The sum of two numbers is 25, and the difference of their squares is 75. What are the two numbers?
Click here to see answer by Paul(988)

Question 40666: steve traveled 600 miles at a certain speed. had he gone 20mph faster, the trip would have taken 1 hour less. Find the speed of his vehicle.
Click here to see answer by checkley71(8403)

Question 40696: (2 x + 2)^2 = 64
Click here to see answer by Nate(3500)

Question 40697: . Solve quadratic equation by completing the square.
4x2 + 8x + 1 = 0

Click here to see answer by Nate(3500)

Question 40652: 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.
Click here to see answer by checkley71(8403)

Question 40648: Steve traveled 600 miles at a certain speed. Had he gone 20mph faster, the trip would have taken 1 hour less. Find the speed of his vehicle.
Click here to see answer by checkley71(8403)

Question 40645: some students planned for a get-together. The budget for food was $500.00 Five of the students failed to come because of the distance and therefore the cost of food for each member increased by $5.00. How many students attended the get-together?
Click here to see answer by rajagopalan(158)

Question 40642: a designer, attempting to arrange the charaters of his artwork in the form of a 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?
isbn 0-321-23383-2, fourth edition
Click here to see answer by rajagopalan(158)

Question 38734: Solve the inequality and express the solution in interval notation:
x^2 - 6x + 11 <18
Click here to see answer by longjonsilver(2297)

Question 40785: HELP set up and solve.
A professor started a project with a group of students, 60% of whom were boys. Due to some unavoidable reasons, six girls couldn't turn up, so the professor had to make some changes in the group. He admitted six boys. In doing so, the percentage of boys in the project increased to 75%. Find the number of boys and girls involved in the project initially.

Click here to see answer by mbarugel(146)

Question 40786: Help set up and solve
Jane invested some amount at the rate of 12% simple interest and some other amount at the rate of 10% simple interest. She received yearly interest of $130. Randy also invested in the same scheme, but he interchanged the amounts invested, and received $4 more as interest. How much amount did each of them invest at different rates?

Click here to see answer by stanbon(57422)

Question 36657: Please helppppp!!!!!!!!!!!
Thanks in advance..
Lisa, Nicole and Amber are to mow a rectangular lawn that measures 100 feet by 120 feet. Lisa is going to mow one-third of the lawn by mowing a strip of uniform width around the outer edge of the lawn. What are the demensions of the lawn still to be mowed.
Thank You
Click here to see answer by checkley71(8403)

Question 40901: 2m^-2+7m^-1-15=0
Click here to see answer by checkley71(8403)

Question 40922: ^_^ fireboat salutes by shooting water into the air. How high does the middle stream if the water reach if water height is described by the function ^_^ thks
Click here to see answer by fractalier(2101)

Question 40921: Water in the tallest stream reaches a height of feet at seconds after leaving a nozzle on the fireboat.
***You can find the water's freatest height bu finding the vertext of the parabola for ***
Click here to see answer by stanbon(57422)

Question 40920: When a 100-m building is imploded, about how long does it take for a piece that breaks off from the roof to fall to the ground ?
Click here to see answer by fractalier(2101)

Question 40975: Find the roots of the quadratic equations using the quadratic formula. Express the roots, if they are not rational, in the simplest radical form.

2x2 + 3x - 4 = 0
Click here to see answer by fractalier(2101)

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, 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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, 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