Questions on Algebra: Equations answered by real tutors!

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Question 987872: Let and
Find and simplify the quotient:
=
Then find the slope of the line tangent to the graph of f at the point (a,f(a))
=
Please give details on how this is solved very confused.
Thank you
Click here to see answer by Edwin McCravy(20055)

Question 987912: If a,b,c parallel line. then prove that a(1/b + 1/c), b(1/c + 1/a), c(1/a + 1/b) in parallel area.

Click here to see answer by ikleyn(52781)

Question 988009: Use the definition of limit to verify that:
lim x->3 (5-2x) = - 1
Please give details thank you
Click here to see answer by Edwin McCravy(20055)

Question 988017: the sum of four times a number and 7 is equal to three times the number
-write as an equation then solve.
Click here to see answer by sive23(2)

Question 988055: 4(2a-1)=-3(2a-1)
What is a
Click here to see answer by stanbon(75887)

Question 988046: 3t-3/t^2-1
Click here to see answer by stanbon(75887)

Question 988177: Ten more than twice the absolute value of a number
Click here to see answer by ikleyn(52781)

Question 988320: 62% of a number is 117.18, find the number. Thanks for your help.
Click here to see answer by macston(5194)

Question 988314: Sam has $2750.00 in a savings account that earns simple interest at a rate of 1 3/4% per year. How much interest will you have earned after 7 years?
Click here to see answer by solver91311(24713)

Question 988318: Solve. -2/5(3x-1/4) -3 (5x-3/2) =4 Thanks for your help.
Click here to see answer by macston(5194)

Question 988352: How would I do -6(r-2)=-18+4r?
Click here to see answer by solver91311(24713)

Question 988352: How would I do -6(r-2)=-18+4r?
Click here to see answer by macston(5194)

Question 988357: show me how to do linear equation and ineqalities
Click here to see answer by Alan3354(69443)

Question 988364: what is 13=5+3b-13 all solved out
Click here to see answer by Alan3354(69443)

Question 988458: Please help me solve this equation: -10v-3 (8+v)
Click here to see answer by Alan3354(69443)

Question 988470: I need help translating these words into expressions, two Less than the quotient of a number and two=, thanks in advance.
Click here to see answer by josgarithmetic(39617)

Question 988470: I need help translating these words into expressions, two Less than the quotient of a number and two=, thanks in advance.
Click here to see answer by Edwin McCravy(20055)

Question 988457: Can you help with this problem?
(3x-2y)^2=
Click here to see answer by rothauserc(4718)

Question 988486: 1/2m-3/4=3/5m
Click here to see answer by Alan3354(69443)

Question 988496: Jerome bought a sweater that was on sale for 20 percent off. Jerome paid $25.10 for the sweater, including sales tax of 8.25 percent. Write an equation that can be used to find the original price of the sweater
Click here to see answer by josmiceli(19441)

Question 988595: The difference of 10 a a number is 18. Please write out equation. Thank you!
Click here to see answer by macston(5194)

Question 988604: If 1/7 is expressed as a decimal, find the 75th digit to the right of the decimal point. Thanks for your help.
Click here to see answer by macston(5194)

Question 988603: If eight times the sum of a number and eight is equal to 56, find the number. Thanks for your help.
Click here to see answer by macston(5194)

Question 988602: 87 is divided into three parts in the ratio of 1:2/3:3/4. Find the value of the smallest part. Thanks for your help.
Click here to see answer by KMST(5328)

Question 988599: Simplify. -2|3-2|+6-12|-2(3+8-2^3)| . Thanks for your help.
Click here to see answer by Alan3354(69443)

Question 988647: The sum of 3 consecutive integers is 186. What's the FIRST number ?
Click here to see answer by Alan3354(69443)

Question 988658: 2 ^9x+6= 8
Click here to see answer by Alan3354(69443)

Question 988706: what is nine less than the product of -4 and 5
Click here to see answer by solver91311(24713)

Question 988726: What are 2 numbers that multiply to give me -27 but add/subtract to give me -12?
Click here to see answer by stanbon(75887)

Question 988786: (x+7)/5=10
x=?
Click here to see answer by Boreal(15235)

Question 988780: Use the definition of limit to verify that:
(1). lim x->3 (5-2x) = - 1
2). lim x->0 (4x+7) = 7
(3). lim x->7 (2x)/(x^2+1) = 1
Please explain how you solved.
Thank you
Click here to see answer by solver91311(24713)

Question 988782: Is "lim x ->a f(x) = L" the same as for every epsilon>0 there exists a delta >0 such that if 0<|x-a| Please explain
Thanks
Click here to see answer by solver91311(24713)

Question 988775: The Future engineers of america club was going back through the fundraising records. On Monday,the club made revenue of $140 selling contest tickets at $10 each.One person sold 8 tickets, but the other person selling that day forgot to write down how many she sold. Write and solve an equation to determine the number of tickets the other person sold.
Click here to see answer by josmiceli(19441)

Question 988839: Solve the equation for the unknown variable. 2(a-1/3)=2/5(a+2/3)
Click here to see answer by Fombitz(32388)

Question 988837: The sum of three positive integers is 20. Find the largest possible product of these positive integers. Thanks for your help.
Click here to see answer by Fombitz(32388)

Question 988837: The sum of three positive integers is 20. Find the largest possible product of these positive integers. Thanks for your help.
Click here to see answer by Alan3354(69443)

Question 988879: 4a + 3 = -9
Click here to see answer by rfer(16322)

Question 988890: write an equation of the line containing the specified point and perpendicular to the indicated line.
(1,3), 3x - y = 2
here is my answer.
y = -1/3x - 20/7
the books answers was y = -1/3x - 8/3.
Please help.
Click here to see answer by Alan3354(69443)

Question 988917: If a stone A is thrown upward from a bridge 10 meters above a river, at an initial velocity of 14.7 meters per second.
(a). Write an equation for the height H(t) (in meters) of A after t seconds (where t≥0), until A splashes into the river. Then determine the length of time t[0] it takes for the stone A to splash into the river.
(b). Sketch the graph, the height H(t) of A above the river for 0<=t<=t[0]
Please explain
Thank you
Click here to see answer by solver91311(24713)

Question 988920: w + 3 = b
b x 2 = j
w + b + j = 41
I cant seem to find out how to get w,b and j. Any and all help is appreciated.
Click here to see answer by JoelSchwartz(130)

Question 988918: Consider the function f(x) = 1/x
I cannot use derivatives, my teacher requires using limits or other methods to solve.
(a). Find the slope of the L tangent to the graph of (3,f(3))
(b). Find an equation of the line L
(c). Find the x-intercept and y-intercept of L
Please explain how these are figured out. Very confused.
Also, what exactly is 3,f(3) are these just arb pts?
Thank you
Click here to see answer by jim_thompson5910(35256)

Question 988900: Consider the function f(x) = 1/x
I cannot use derivatives, my teacher requires using limits or other methods to solve.
(a). Find the slope of the L tangent to the graph of (3,f(3))
(b). Find an equation of the line L
(c). Find the x-intercept and y-intercept of L
Please explain how these are figured out. Very confused.
Thank you

Click here to see answer by macston(5194)

Question 989031: Help please. -3a+6(a-2b)+a-7(a-2b)=pa+sb where p and s are integers find the value of (2p-4s). Thanks for your help.
Click here to see answer by stanbon(75887)

Question 989031: Help please. -3a+6(a-2b)+a-7(a-2b)=pa+sb where p and s are integers find the value of (2p-4s). Thanks for your help.
Click here to see answer by macston(5194)

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, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580