Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 363301: s^2=169
Click here to see answer by rfer(16322)

Question 363309: x^2=84

Click here to see answer by rfer(16322)

Question 363466: (a - 1)^1/3 = -3
Click here to see answer by mananth(16946)

Question 363499: write the expression in quadratic form. 3x^24+4x^12+7
Click here to see answer by Fombitz(32388)

Question 363495: write the following quadratic function in the vertex form. then, identify the axis of symmetry and vertex: y=3x^2-6x+1
Click here to see answer by Fombitz(32388)

Question 363513: y = 4 � 2x ?A.
x-intercept = 4; y-intercept = -2
B.
x-intercept = -2; y-intercept = 4
C.
x-intercept = 2; y-intercept = 4
D.
x-intercept = 4; y-intercept = 2
Click here to see answer by ewatrrr(24785)

Question 363552: when you have x+4x=0 can you move the 4x ?? example x+4x=0-4x
Click here to see answer by ewatrrr(24785)

Question 363564: a woodland jumping mouse hops along a parabolic path given by y=-0.2xsquared +1.3x where x is the mouses horazontal position(in feet) and y is the corasponding hight (in feet). can the mouse jump over a fence that is 3 feet high? explain
Click here to see answer by stanbon(75887)

Question 363607: This problem is in my college algebra for calculus class under quadratic equations. The book gives the answer but not how it is worked out. Can you please help. It says to solve 3y^3-5y^2-2y=0
Click here to see answer by edjones(8007)

Question 363624: Solve
5x^2-2x+1=0
Click here to see answer by Fombitz(32388)

Question 363678: Need help with the problem below
Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x)=0.1x^2-1.9x + 9.739, where C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle?
Click here to see answer by ankor@dixie-net.com(22740)

Question 363670: 89 miles at a certain speed. the canoist travels 12 miles on the second part of the trip 5 mph slower.the total time for trip was 4 hours
What was the speed on the first part of the trip
Click here to see answer by ankor@dixie-net.com(22740)

Question 363732: Can I please get help factoring this Quadratic Equation into two binomials:
-16x^2+40x+25 . Any help is much appreciated!
Click here to see answer by stanbon(75887)

Question 363737: Help with HW
the number of tickets sold each day for an upcoming performance of Handel's Messiah is given by N(x)=-0.4x^2+12x +15, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?
Click here to see answer by stanbon(75887)

Question 363129: Create the quadratic equation in the form y=ax^2+bx+c using the point (0,2) as one point and the point (9,-8) as the vertex. Enter the a,b, and c values as common fractions in reduced form.
Click here to see answer by scott8148(6628)

Question 363840: x2-7=0
x(square)
Click here to see answer by ewatrrr(24785)

Question 363758: The width of a rectangle is 1 ft less than the length. the area is 2 ft^2. Find the length and the width.
Click here to see answer by checkley77(12844)

Question 363869: 3x^2-4x-4=0
Click here to see answer by stanbon(75887)

Question 363931: Directions:
Use the compound interest formulas A=P(1+r/n )^nt and A=pe^rt to solve.

Find the accumulated value of an investment of $850 at 4% compounded annually for 17 years.
Can someone show me what steps I need to use to find the answer?
Thanks!
Click here to see answer by jrfrunner(365)

Question 363963: Without graphing, tell how many x-intercepts the function has.

Click here to see answer by Alan3354(69443)

Question 363963: Without graphing, tell how many x-intercepts the function has.

Click here to see answer by Sphinx pinastri(17)

Question 363960:
Which describes the nature of the roots of the equation

Click here to see answer by stanbon(75887)

Question 363966: solve for w

Click here to see answer by Alan3354(69443)

Question 363980: how to open this (1+i)^4 and (1-i)^4
Click here to see answer by Alan3354(69443)

Question 363908: 3x^2+12x+5=p(x+q)^2+r
Find the values of p,q and r
Click here to see answer by jim_thompson5910(35256)

Question 364001: A boat starts at point A, moves 3 km north, then 2 km east, then 1 km south, and then 4 km east to point B. Find the distance AB.
Click here to see answer by Alan3354(69443)

Question 364006: Create the quadratic equation in the form y=ax^2+bx+c using the point (-5,6) as a point on the graph and (9,-9) as the vertex.
I know the answers, I'm just not sure how to start solving for it.
Click here to see answer by stanbon(75887)

Question 364026: solve for x
x^2 + 25= 8x
Click here to see answer by Fombitz(32388)

Question 364028: x/(x^2-4) - 1/x^2+4x+4

How do I solve this?
Click here to see answer by unlockmath(1688)

Question 364031: a student opens a mathematics book to two facing pages. the product of the page number is 702. find the page number.
the first page is
the second page is
Click here to see answer by unlockmath(1688)

Question 364052: b/3 = -3/4
Click here to see answer by user_dude2008(1862)

Question 363930: Directions:
Use the compound interest formulas A=P(1+r/n )^nt and A=pe^rt to solve.
Suppose that you have $7000 to invest. Which investment yields the greater return over 9 years: 8.75% compounded continuously or 8.9% compounded semiannually?
Can someone help me? I have to show all my work, so any help is greatly appreciated.

Click here to see answer by solver91311(24713)

Question 364054: Solve the formula for the indicated variable.
I= E/R+r for R
Click here to see answer by vasumathi(46)

Question 363968:
Click here to see answer by Alan3354(69443)

Question 364165: write a quadratic equation in the variable x having given numbers as solutions. Type in standard form solution 9, only solution?
Click here to see answer by Earlsdon(6294)

Question 364409: How do you solve 3x^2 - 6x = 2 by completing the square?
Click here to see answer by mananth(16946)

Question 364529: w^2 + 49 = 0
a^2 - 40 = 0
w^2 = -225
3v^2 + 4v -1 = 0
Click here to see answer by edjones(8007)

Question 364561: what is the diag. of a 165 ft.sq. (165x4)
Click here to see answer by rfer(16322)

Question 364688: If i^2 =-1, then i^142 =?
Click here to see answer by Fombitz(32388)

Question 364733: factor each trionimal,if possible.
3a2+13a+4

Click here to see answer by robertb(5830)

Question 364774: explain the difference between simplyfing and evaluating
4x-6y-7x+8
x=5 y=2
Click here to see answer by Edwin McCravy(20054)

Question 364851: One number is three less than twice another. The sum of their squares is 74. Find the numbers.
Click here to see answer by stanbon(75887)

Question 364906: 2x^2/3 - 8x^1/3 + 15 = 0
Thanks for your help and time!!!
Click here to see answer by Jk22(389)

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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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, 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