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Question 1084015: Which function's graph has a vertex at (-3,-4)and contains the point (-6,-7)?
A. y=-1/3(x+3)^2-4
B. y=-1/3(x-3)^2-4
C. y=-3(x-3)^2-4
D. y=-3(x+3)^2-4
Click here to see answer by MathLover1(20849)

Question 1084014: The function below can be used to model the area of a rectangle in square inches A, if the rectangle has a perimeter of 100 inches and a width of w inches. A= 25w-5w^2. Describe the domain of the function
Click here to see answer by ikleyn(52748)

Question 1084096: x+y=7 and 2x+y=11
Click here to see answer by Fombitz(32388)

Question 1084095: (x+1)(x-2)=2
Click here to see answer by Fombitz(32388)

Question 1084097: (x+1)(x-2)=4
Click here to see answer by Boreal(15235)

Question 1084143: Edna paid at least 1200 for a pair of pants and blouse
The cost of the pair of pants is 600 more than the blouse

Click here to see answer by ikleyn(52748)

Question 1084205: how can i explain if the equation is not a quadratic
Click here to see answer by MathLover1(20849)

Question 1084263: 3x-2x�=7
Click here to see answer by Edwin McCravy(20054)

Question 1084263: 3x-2x�=7
Click here to see answer by ikleyn(52748)

Question 1084262: 3x-2x�=7
Click here to see answer by ikleyn(52748)

Question 1084290: An area is paved with square tiles of a certain size and the number required is 128 if the tiles had been 2 cm smaller each way 200 tiles would have been needed to pave the same area find the size of the larger tiles
Click here to see answer by josgarithmetic(39613)

Question 1084295:
Click here to see answer by Edwin McCravy(20054)

Question 1084313: 1) Given the vertex form of this quadratic equation complete the following tasks:
f(x)=(x+3)^2-2
a) If f(x) is shifted three units to the right, shifted up two units, and reflected vertically over the x-axis, what is the new function?
____________________________________
b) Graph the original parabola and the transformed parabola on the same coordinate graph.
Click here to see answer by Boreal(15235)

Question 1084324: Hello,
I need help with the following question,
Complete a table of values for
y=2/5x-4
W=4.75n-.50
Thanks!
Click here to see answer by Alan3354(69443)

Question 1084324: Hello,
I need help with the following question,
Complete a table of values for
y=2/5x-4
W=4.75n-.50
Thanks!
Click here to see answer by Boreal(15235)

Question 1084334: A route up a mountain is 20 km long john followed this routeat the average speed of x km/h
a)Write down an expression in trems of x for a number of hourshe tooks to walk up the mountain
b)he came down the mountain by a different route the lenght ofthis route was 25 km his average speed coming down the mountain was2 m per hour greater then his average speed going up the mountainwrite down an expression in terms of x for the number of hours hetook to walk down
c)if took john one and half hours less to come downthen to go up write down an equation in x and show that itsimplifies to 3x^2+16x-80-0
Click here to see answer by Boreal(15235)

Question 1084355: 3x� = -9x
Solutions for x?
Click here to see answer by ikleyn(52748)

Question 1084368: a)Express x^2 -10x + 32 in the form (x+a)^2 + b ,giving the values of a and b.
b)Sketch the graph of y= x^2 -10x + 32, marking the coordinates of the minimum point on the curve.

Click here to see answer by Theo(13342)

Question 1084609: The speed of an ordinary train is x km per hr and that of an express train is x+25 km per hr .(i) find the time taken by each train to cover a distance of 300km.(ii) if the ordinary train takes 2hrs more than the express train;calculate speed of the express train.
Click here to see answer by josmiceli(19441)

Question 1084643: Hi, can you please help me with this problem as well.
Thank you!
Solve. (x-a)/(a-b) - (x+b)/(a+b) = (2a(x-b))/(a^2-b^2) + (a-b)/(a+b)
Click here to see answer by Edwin McCravy(20054)

Question 1084615: FOUR YEARS AGO THE SUM OF THE AGESOF THE FOUR FAMILY MEMBERS WAS 84.TODAY THE DAUGHTER IS MARRIED OFF AND REPLACED BY DAUGHTER IN LAW.WITH THE RESULT SUM FO AGES IS 95.ASSUMING THERE IS NO DIFFERENCE FOR ALL OTHER WHAT IS THE DIFFERNCE IN AGES BETWEEN DAUGHTER AND DAUGHTER IN LAW

Click here to see answer by Theo(13342)

Question 1084683: please help me in solving this equation
Click here to see answer by Boreal(15235)

Question 1084695: if the speed of an aeroplane is reduced by 40km per hr,it takes 20 minutes more to cover 1200km. find the speed of the aeroplane.
Click here to see answer by Boreal(15235)

Question 1084695: if the speed of an aeroplane is reduced by 40km per hr,it takes 20 minutes more to cover 1200km. find the speed of the aeroplane.
Click here to see answer by MathTherapy(10549)

Question 1084717: A quadratic equation is shown below:
3x2 − 15x − 10 = 0
Part A: Describe the solution(s) to the equation by just determining the radicand. Show your work.
Part B: Solve 4x2 − 8x − 5 = 0 by using an appropriate method. Show the steps of your work, and explain why you chose the method used.
Click here to see answer by MathLover1(20849)

Question 1084765: Suppose that F has zeros at -2,1,3,4 and that F(0)=4. Sketch the graph of F. is 4 the y intercept?
Click here to see answer by Fombitz(32388)

Question 1084809:
Click here to see answer by Alan3354(69443)

Question 1084833: A goods train leaves a station at 6p.m.,followed by an express train which leaves at 8p.m. and travels 20km per hr faster than the goods train. The express train arrives at a station,1040 km away, 36 min before the goods train. Assuming that the speeds of both the trains remain constant between the two stations;calculate their speeds. I have this question. please solve this.
Click here to see answer by ankor@dixie-net.com(22740)

Question 1084786: 3x-2xsquared=7
Click here to see answer by Alan3354(69443)

Question 1084898: Write the quadratic function in standard form.
f(x) = x2 − 2x − 3
i need help putting it in standard form. i found the x intercepts from the graph. i need help finding the y intercept
Click here to see answer by josgarithmetic(39613)

Question 1084900: Perform the indicated operation with complex numbers. (Simplify your answer completely.)
4 − i
9 + i

i tried to complete this and ended up with 37/82 + 13i/82 and was marked wrong
Click here to see answer by josmiceli(19441)

Question 1084896: Find the equation of the quadratic function using the given information.
The vertex is (x,y) = (-1,4) and a point on the graph is (x,y) = (4,8)
Y=
I have tried to figure this out. I got X squared + 2x-2 but was marked wrong
Click here to see answer by josgarithmetic(39613)

Question 1084899: A rectangular plot of land is to be enclosed by fencing. One side is along a river and so needs no fence. If the total fencing available is 1800 meters, find the dimensions of the plot to have maximum area. (Assume that the length is greater than or equal to the width.)
Click here to see answer by josgarithmetic(39613)

Question 1085051: develop an algorithm to calculate all possible roots of a quadratic equation
Click here to see answer by Fombitz(32388)

Question 1085051: develop an algorithm to calculate all possible roots of a quadratic equation
Click here to see answer by ikleyn(52748)

Question 1085127: Find k such that the equation 6x^2 + 6x + k =0 has Two equal real roots, two distinct real roots, and no real roots.
Click here to see answer by MathLover1(20849)

Question 1085127: Find k such that the equation 6x^2 + 6x + k =0 has Two equal real roots, two distinct real roots, and no real roots.
Click here to see answer by josmiceli(19441)

Question 1085127: Find k such that the equation 6x^2 + 6x + k =0 has Two equal real roots, two distinct real roots, and no real roots.
Click here to see answer by MathTherapy(10549)

Question 1085174: Find k such that the equation 2x^2 +kx + 8 has two equal real roots, two distinct real roots and no real roots
Click here to see answer by Alan3354(69443)

Question 1085176: Write a quadratic equation in factored and standard form whose roots are 3 and -4/3. Is there more than one solution possible? Explain!
Click here to see answer by josmiceli(19441)

Question 1085175: Find k such that the equation 2x^2 +kx + 8 = 0 has two equal real roots, two distinct real roots and no real roots
Click here to see answer by MathLover1(20849)

Question 1085175: Find k such that the equation 2x^2 +kx + 8 = 0 has two equal real roots, two distinct real roots and no real roots
Click here to see answer by MathTherapy(10549)

Question 1085210: The sum of a number and its square is 4 more than twice the number. Find the number.
Click here to see answer by stanbon(75887)

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, 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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, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240