Questions on Algebra: Equations answered by real tutors!

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Question 462992: write in scientific notation
-0.000926
Click here to see answer by rfer(12730)

Question 462961: how to slove this problem -19=6-5(8+3m)
Click here to see answer by rfer(12730)

Question 463013: Given these two ordered pairs find the slope of his elevation. (6, 3) (8, 6)

Click here to see answer by algebrahouse.com(1079)

Question 462556: Find the numbers preceding and succeeding the following number.
EEE Base twelve
The preceding number is ___ base twelve.
The succeeding number is ___ base twelve.
Click here to see answer by richard1234(5390)

Question 463422: simplify

Click here to see answer by alicealc(281)

Question 463451: Factor completely: 5x2 + 20x
Click here to see answer by MathLover1(6812)

Question 463461: The slope of a line is 12 and the point (1, 10) is on the line. Express the line in slope-intercept form.
Click here to see answer by MathLover1(6812)

Question 463485: 4(x+2)=28
Click here to see answer by rfer(12730)

Question 463485: 4(x+2)=28
Click here to see answer by Alan3354(31518)

Question 463483: 5p-24=-45+8p

Click here to see answer by algebrahouse.com(1079)

Question 463547: If 7x^2 + 4x = 3 , which of the following is (are) true?
I. The sum of the solutions is positive.
II. The product of the solutions is negative.
III. Both solutions are integers.
a) I only
b) II only
c) III only
d) I and II only
e) II and III only
Click here to see answer by MathLover1(6812)

Question 463617: factor
1-121x^2=
Click here to see answer by lwsshak3(6756)

Question 463616: factor
6x^2+12x-24=
Click here to see answer by lwsshak3(6756)

Question 463616: factor
6x^2+12x-24=
Click here to see answer by graphmatics(170)

Question 463613: simplify
(x-4)(x^2-4x+2)=
Click here to see answer by aliateach(10)

Question 463614: simplify
(r^3-2)^2=
Click here to see answer by aliateach(10)

Question 463666: If you solve for x, what is the solution for .... 6x + mx = 5m
Click here to see answer by algebrahouse.com(1079)

Question 463642: s=4v to the second power solve for v
Click here to see answer by algebrahouse.com(1079)

Question 463676: I have tried this over 17 times and I still get the wrong answer when I check it.
4(12+z)-z=-192

Click here to see answer by algebrahouse.com(1079)

Question 463708: What do I do here? Express using a positive exponent.
b^-8
Click here to see answer by algebrahouse.com(1079)

Question 463714: What's the answer to x/6+2=4/5-x
Click here to see answer by algebrahouse.com(1079)

Question 463716: Please help me to solve this problem. For the cost function c=0.4q^2+4q+5 , find the rate of change of c with respect to q when q=2 .
Click here to see answer by nerdybill(7003)

Question 463727: factor
9x^3y+12x^2y+4xy=
Click here to see answer by robertb(4012)

Question 463728: simplify
x^2-3x+2
________ =
x^2-4x+3
Click here to see answer by robertb(4012)

Question 463736: Hi,how can i solve this equation?==>3x - 7 = 17 means that 3x = 10
Click here to see answer by amoresroy(333)

Question 463784: what is the answer to 8x - 4 = 2x - 3

Click here to see answer by rfer(12730)

Question 463775: how can I solve this equation
-2x + 5 = 13
Click here to see answer by rfer(12730)

Question 463821: Solve the equatioon by factoring. Xsquared+5x-24=0
Click here to see answer by Alan3354(31518)

Question 463855: I'm getting lost with all of the "-"s in the following equation:
Simplify: -90-(-29)-38-(-52)
Would you please help show me how they arrive at an answer of -47? Thanks!!
Click here to see answer by rfer(12730)

Question 463876: please solve :
x+(-5 3/4)= -10 1/4

thankyou
Click here to see answer by rfer(12730)

Question 463883: -2/3(x-3)=
Click here to see answer by rfer(12730)

Question 463919: Could you please help me solve the following equation:
1/(x+1) + 1/(x-1) = 1
This is the work that I have done so far:
(x-1)+(x+1)=(x-1)(x+1)
x-1+x+1=x^2-1
2x=x^2-1
0=x^2-2x-1
That's where I'm stuck, and I'm not even sure that the work I've done so far is correct. I would sincerely appreciate your assistance.
Click here to see answer by sudhanshu_kmr(1152)

Question 463929: A partial solution to the equation 5(2x + 3) = 85 is given below. Choose the step that is missing from the solution.
5(2x + 3) = 85

(missing step)
10x = 70
x = 7

Click here to see answer by sudhanshu_kmr(1152)

Question 463964: The positive difference between x and 2/9 is the same as the positive difference between 3/7 and 4/11. what could be the value of x?
Click here to see answer by edjones(7569)

Question 464009: The stopping distance d of a car after the brakes are applied varies directly as the square of the speed r. If a car travelling 30 mph can stop in 50 ft, how many feet will it take the same car to stop when it is travelling 20 mph?
Click here to see answer by stanbon(57967)

Question 464041: please help me solve the following equation 7x^(2)+4x-3=0

Click here to see answer by algebrahouse.com(1079)

Question 464043: -8x-20=25 and 1/3
x=?
Click here to see answer by algebrahouse.com(1079)

Question 464057: Write an equation of the line that contains (-5,4) and is parallel to 4x+6y=18
Click here to see answer by jorel1380(2518)

Question 464046: 5/3x+1/3x=2x+40/3+8/3x
The solution s x=?
Click here to see answer by jorel1380(2518)

Question 464087: How can you express A = {3,9,27,81,243} using a set-builder notation?
Click here to see answer by robertb(4012)

Question 464158: Factor the trinomial.
t^2-16t+63
Click here to see answer by ewatrrr(10682)

Question 464176: Book says to solve: 1 over x = 2 over 3-x. I know you multiply (-1) into 2 over 3 - x but I'm lost after that. Can you help me?
Thanks
Click here to see answer by jorel1380(2518)

Question 463805: A quadratic relation has zeros at -2 and 8, and a y-intercept of 8. Determine the equation of the relation in veertex form
Click here to see answer by lwsshak3(6756)

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, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 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