Tutor:

New! Get regular updates about newly solved problems via algebra.com's RSS system.

---

Recent problems solved by 'jim_thompson5910'

jim_thompson5910 answered: 28586 problems
Jump to solutions: 0..29 , 30..59 , 60..89 , 90..119 , 120..149 , 150..179 , 180..209 , 210..239 , 240..269 , 270..299 , 300..329 , 330..359 , 360..389 , 390..419 , 420..449 , 450..479 , 480..509 , 510..539 , 540..569 , 570..599 , 600..629 , 630..659 , 660..689 , 690..719 , 720..749 , 750..779 , 780..809 , 810..839 , 840..869 , 870..899 , 900..929 , 930..959 , 960..989 , 990..1019 , 1020..1049 , 1050..1079 , 1080..1109 , 1110..1139 , 1140..1169 , 1170..1199 , 1200..1229 , 1230..1259 , 1260..1289 , 1290..1319 , 1320..1349 , 1350..1379 , 1380..1409 , 1410..1439 , 1440..1469 , 1470..1499 , 1500..1529 , 1530..1559 , 1560..1589 , 1590..1619 , 1620..1649 , 1650..1679 , 1680..1709 , 1710..1739 , 1740..1769 , 1770..1799 , 1800..1829 , 1830..1859 , 1860..1889 , 1890..1919 , 1920..1949 , 1950..1979 , 1980..2009 , 2010..2039 , 2040..2069 , 2070..2099 , 2100..2129 , 2130..2159 , 2160..2189 , 2190..2219 , 2220..2249 , 2250..2279 , 2280..2309 , 2310..2339 , 2340..2369 , 2370..2399 , 2400..2429 , 2430..2459 , 2460..2489 , 2490..2519 , 2520..2549 , 2550..2579 , 2580..2609 , 2610..2639 , 2640..2669 , 2670..2699 , 2700..2729 , 2730..2759 , 2760..2789 , 2790..2819 , 2820..2849 , 2850..2879 , 2880..2909 , 2910..2939 , 2940..2969 , 2970..2999 , 3000..3029 , 3030..3059 , 3060..3089 , 3090..3119 , 3120..3149 , 3150..3179 , 3180..3209 , 3210..3239 , 3240..3269 , 3270..3299 , 3300..3329 , 3330..3359 , 3360..3389 , 3390..3419 , 3420..3449 , 3450..3479 , 3480..3509 , 3510..3539 , 3540..3569 , 3570..3599 , 3600..3629 , 3630..3659 , 3660..3689 , 3690..3719 , 3720..3749 , 3750..3779 , 3780..3809 , 3810..3839 , 3840..3869 , 3870..3899 , 3900..3929 , 3930..3959 , 3960..3989 , 3990..4019 , 4020..4049 , 4050..4079 , 4080..4109 , 4110..4139 , 4140..4169 , 4170..4199 , 4200..4229 , 4230..4259 , 4260..4289 , 4290..4319 , 4320..4349 , 4350..4379 , 4380..4409 , 4410..4439 , 4440..4469 , 4470..4499 , 4500..4529 , 4530..4559 , 4560..4589 , 4590..4619 , 4620..4649 , 4650..4679 , 4680..4709 , 4710..4739 , 4740..4769 , 4770..4799 , 4800..4829 , 4830..4859 , 4860..4889 , 4890..4919 , 4920..4949 , 4950..4979 , 4980..5009 , 5010..5039 , 5040..5069 , 5070..5099 , 5100..5129 , 5130..5159 , 5160..5189 , 5190..5219 , 5220..5249 , 5250..5279 , 5280..5309 , 5310..5339 , 5340..5369 , 5370..5399 , 5400..5429 , 5430..5459 , 5460..5489 , 5490..5519 , 5520..5549 , 5550..5579 , 5580..5609 , 5610..5639 , 5640..5669 , 5670..5699 , 5700..5729 , 5730..5759 , 5760..5789 , 5790..5819 , 5820..5849 , 5850..5879 , 5880..5909 , 5910..5939 , 5940..5969 , 5970..5999 , 6000..6029 , 6030..6059 , 6060..6089 , 6090..6119 , 6120..6149 , 6150..6179 , 6180..6209 , 6210..6239 , 6240..6269 , 6270..6299 , 6300..6329 , 6330..6359 , 6360..6389 , 6390..6419 , 6420..6449 , 6450..6479 , 6480..6509 , 6510..6539 , 6540..6569 , 6570..6599 , 6600..6629 , 6630..6659 , 6660..6689 , 6690..6719 , 6720..6749 , 6750..6779 , 6780..6809 , 6810..6839 , 6840..6869 , 6870..6899 , 6900..6929 , 6930..6959 , 6960..6989 , 6990..7019 , 7020..7049 , 7050..7079 , 7080..7109 , 7110..7139 , 7140..7169 , 7170..7199 , 7200..7229 , 7230..7259 , 7260..7289 , 7290..7319 , 7320..7349 , 7350..7379 , 7380..7409 , 7410..7439 , 7440..7469 , 7470..7499 , 7500..7529 , 7530..7559 , 7560..7589 , 7590..7619 , 7620..7649 , 7650..7679 , 7680..7709 , 7710..7739 , 7740..7769 , 7770..7799 , 7800..7829 , 7830..7859 , 7860..7889 , 7890..7919 , 7920..7949 , 7950..7979 , 7980..8009 , 8010..8039 , 8040..8069 , 8070..8099 , 8100..8129 , 8130..8159 , 8160..8189 , 8190..8219 , 8220..8249 , 8250..8279 , 8280..8309 , 8310..8339 , 8340..8369 , 8370..8399 , 8400..8429 , 8430..8459 , 8460..8489 , 8490..8519 , 8520..8549 , 8550..8579 , 8580..8609 , 8610..8639 , 8640..8669 , 8670..8699 , 8700..8729 , 8730..8759 , 8760..8789 , 8790..8819 , 8820..8849 , 8850..8879 , 8880..8909 , 8910..8939 , 8940..8969 , 8970..8999 , 9000..9029 , 9030..9059 , 9060..9089 , 9090..9119 , 9120..9149 , 9150..9179 , 9180..9209 , 9210..9239 , 9240..9269 , 9270..9299 , 9300..9329 , 9330..9359 , 9360..9389 , 9390..9419 , 9420..9449 , 9450..9479 , 9480..9509 , 9510..9539 , 9540..9569 , 9570..9599 , 9600..9629 , 9630..9659 , 9660..9689 , 9690..9719 , 9720..9749 , 9750..9779 , 9780..9809 , 9810..9839 , 9840..9869 , 9870..9899 , 9900..9929 , 9930..9959 , 9960..9989 , 9990..10019 , 10020..10049 , 10050..10079 , 10080..10109 , 10110..10139 , 10140..10169 , 10170..10199 , 10200..10229 , 10230..10259 , 10260..10289 , 10290..10319 , 10320..10349 , 10350..10379 , 10380..10409 , 10410..10439 , 10440..10469 , 10470..10499 , 10500..10529 , 10530..10559 , 10560..10589 , 10590..10619 , 10620..10649 , 10650..10679 , 10680..10709 , 10710..10739 , 10740..10769 , 10770..10799 , 10800..10829 , 10830..10859 , 10860..10889 , 10890..10919 , 10920..10949 , 10950..10979 , 10980..11009 , 11010..11039 , 11040..11069 , 11070..11099 , 11100..11129 , 11130..11159 , 11160..11189 , 11190..11219 , 11220..11249 , 11250..11279 , 11280..11309 , 11310..11339 , 11340..11369 , 11370..11399 , 11400..11429 , 11430..11459 , 11460..11489 , 11490..11519 , 11520..11549 , 11550..11579 , 11580..11609 , 11610..11639 , 11640..11669 , 11670..11699 , 11700..11729 , 11730..11759 , 11760..11789 , 11790..11819 , 11820..11849 , 11850..11879 , 11880..11909 , 11910..11939 , 11940..11969 , 11970..11999 , 12000..12029 , 12030..12059 , 12060..12089 , 12090..12119 , 12120..12149 , 12150..12179 , 12180..12209 , 12210..12239 , 12240..12269 , 12270..12299 , 12300..12329 , 12330..12359 , 12360..12389 , 12390..12419 , 12420..12449 , 12450..12479 , 12480..12509 , 12510..12539 , 12540..12569 , 12570..12599 , 12600..12629 , 12630..12659 , 12660..12689 , 12690..12719 , 12720..12749 , 12750..12779 , 12780..12809 , 12810..12839 , 12840..12869 , 12870..12899 , 12900..12929 , 12930..12959 , 12960..12989 , 12990..13019 , 13020..13049 , 13050..13079 , 13080..13109 , 13110..13139 , 13140..13169 , 13170..13199 , 13200..13229 , 13230..13259 , 13260..13289 , 13290..13319 , 13320..13349 , 13350..13379 , 13380..13409 , 13410..13439 , 13440..13469 , 13470..13499 , 13500..13529 , 13530..13559 , 13560..13589 , 13590..13619 , 13620..13649 , 13650..13679 , 13680..13709 , 13710..13739 , 13740..13769 , 13770..13799 , 13800..13829 , 13830..13859 , 13860..13889 , 13890..13919 , 13920..13949 , 13950..13979 , 13980..14009 , 14010..14039 , 14040..14069 , 14070..14099 , 14100..14129 , 14130..14159 , 14160..14189 , 14190..14219 , 14220..14249 , 14250..14279 , 14280..14309 , 14310..14339 , 14340..14369 , 14370..14399 , 14400..14429 , 14430..14459 , 14460..14489 , 14490..14519 , 14520..14549 , 14550..14579 , 14580..14609 , 14610..14639 , 14640..14669 , 14670..14699 , 14700..14729 , 14730..14759 , 14760..14789 , 14790..14819 , 14820..14849 , 14850..14879 , 14880..14909 , 14910..14939 , 14940..14969 , 14970..14999 , 15000..15029 , 15030..15059 , 15060..15089 , 15090..15119 , 15120..15149 , 15150..15179 , 15180..15209 , 15210..15239 , 15240..15269 , 15270..15299 , 15300..15329 , 15330..15359 , 15360..15389 , 15390..15419 , 15420..15449 , 15450..15479 , 15480..15509 , 15510..15539 , 15540..15569 , 15570..15599 , 15600..15629 , 15630..15659 , 15660..15689 , 15690..15719 , 15720..15749 , 15750..15779 , 15780..15809 , 15810..15839 , 15840..15869 , 15870..15899 , 15900..15929 , 15930..15959 , 15960..15989 , 15990..16019 , 16020..16049 , 16050..16079 , 16080..16109 , 16110..16139 , 16140..16169 , 16170..16199 , 16200..16229 , 16230..16259 , 16260..16289 , 16290..16319 , 16320..16349 , 16350..16379 , 16380..16409 , 16410..16439 , 16440..16469 , 16470..16499 , 16500..16529 , 16530..16559 , 16560..16589 , 16590..16619 , 16620..16649 , 16650..16679 , 16680..16709 , 16710..16739 , 16740..16769 , 16770..16799 , 16800..16829 , 16830..16859 , 16860..16889 , 16890..16919 , 16920..16949 , 16950..16979 , 16980..17009 , 17010..17039 , 17040..17069 , 17070..17099 , 17100..17129 , 17130..17159 , 17160..17189 , 17190..17219 , 17220..17249 , 17250..17279 , 17280..17309 , 17310..17339 , 17340..17369 , 17370..17399 , 17400..17429 , 17430..17459 , 17460..17489 , 17490..17519 , 17520..17549 , 17550..17579 , 17580..17609 , 17610..17639 , 17640..17669 , 17670..17699 , 17700..17729 , 17730..17759 , 17760..17789 , 17790..17819 , 17820..17849 , 17850..17879 , 17880..17909 , 17910..17939 , 17940..17969 , 17970..17999 , 18000..18029 , 18030..18059 , 18060..18089 , 18090..18119 , 18120..18149 , 18150..18179 , 18180..18209 , 18210..18239 , 18240..18269 , 18270..18299 , 18300..18329 , 18330..18359 , 18360..18389 , 18390..18419 , 18420..18449 , 18450..18479 , 18480..18509 , 18510..18539 , 18540..18569 , 18570..18599 , 18600..18629 , 18630..18659 , 18660..18689 , 18690..18719 , 18720..18749 , 18750..18779 , 18780..18809 , 18810..18839 , 18840..18869 , 18870..18899 , 18900..18929 , 18930..18959 , 18960..18989 , 18990..19019 , 19020..19049 , 19050..19079 , 19080..19109 , 19110..19139 , 19140..19169 , 19170..19199 , 19200..19229 , 19230..19259 , 19260..19289 , 19290..19319 , 19320..19349 , 19350..19379 , 19380..19409 , 19410..19439 , 19440..19469 , 19470..19499 , 19500..19529 , 19530..19559 , 19560..19589 , 19590..19619 , 19620..19649 , 19650..19679 , 19680..19709 , 19710..19739 , 19740..19769 , 19770..19799 , 19800..19829 , 19830..19859 , 19860..19889 , 19890..19919 , 19920..19949 , 19950..19979 , 19980..20009 , 20010..20039 , 20040..20069 , 20070..20099 , 20100..20129 , 20130..20159 , 20160..20189 , 20190..20219 , 20220..20249 , 20250..20279 , 20280..20309 , 20310..20339 , 20340..20369 , 20370..20399 , 20400..20429 , 20430..20459 , 20460..20489 , 20490..20519 , 20520..20549 , 20550..20579 , 20580..20609 , 20610..20639 , 20640..20669 , 20670..20699 , 20700..20729 , 20730..20759 , 20760..20789 , 20790..20819 , 20820..20849 , 20850..20879 , 20880..20909 , 20910..20939 , 20940..20969 , 20970..20999 , 21000..21029 , 21030..21059 , 21060..21089 , 21090..21119 , 21120..21149 , 21150..21179 , 21180..21209 , 21210..21239 , 21240..21269 , 21270..21299 , 21300..21329 , 21330..21359 , 21360..21389 , 21390..21419 , 21420..21449 , 21450..21479 , 21480..21509 , 21510..21539 , 21540..21569 , 21570..21599 , 21600..21629 , 21630..21659 , 21660..21689 , 21690..21719 , 21720..21749 , 21750..21779 , 21780..21809 , 21810..21839 , 21840..21869 , 21870..21899 , 21900..21929 , 21930..21959 , 21960..21989 , 21990..22019 , 22020..22049 , 22050..22079 , 22080..22109 , 22110..22139 , 22140..22169 , 22170..22199 , 22200..22229 , 22230..22259 , 22260..22289 , 22290..22319 , 22320..22349 , 22350..22379 , 22380..22409 , 22410..22439 , 22440..22469 , 22470..22499 , 22500..22529 , 22530..22559 , 22560..22589 , 22590..22619 , 22620..22649 , 22650..22679 , 22680..22709 , 22710..22739 , 22740..22769 , 22770..22799 , 22800..22829 , 22830..22859 , 22860..22889 , 22890..22919 , 22920..22949 , 22950..22979 , 22980..23009 , 23010..23039 , 23040..23069 , 23070..23099 , 23100..23129 , 23130..23159 , 23160..23189 , 23190..23219 , 23220..23249 , 23250..23279 , 23280..23309 , 23310..23339 , 23340..23369 , 23370..23399 , 23400..23429 , 23430..23459 , 23460..23489 , 23490..23519 , 23520..23549 , 23550..23579 , 23580..23609 , 23610..23639 , 23640..23669 , 23670..23699 , 23700..23729 , 23730..23759 , 23760..23789 , 23790..23819 , 23820..23849 , 23850..23879 , 23880..23909 , 23910..23939 , 23940..23969 , 23970..23999 , 24000..24029 , 24030..24059 , 24060..24089 , 24090..24119 , 24120..24149 , 24150..24179 , 24180..24209 , 24210..24239 , 24240..24269 , 24270..24299 , 24300..24329 , 24330..24359 , 24360..24389 , 24390..24419 , 24420..24449 , 24450..24479 , 24480..24509 , 24510..24539 , 24540..24569 , 24570..24599 , 24600..24629 , 24630..24659 , 24660..24689 , 24690..24719 , 24720..24749 , 24750..24779 , 24780..24809 , 24810..24839 , 24840..24869 , 24870..24899 , 24900..24929 , 24930..24959 , 24960..24989 , 24990..25019 , 25020..25049 , 25050..25079 , 25080..25109 , 25110..25139 , 25140..25169 , 25170..25199 , 25200..25229 , 25230..25259 , 25260..25289 , 25290..25319 , 25320..25349 , 25350..25379 , 25380..25409 , 25410..25439 , 25440..25469 , 25470..25499 , 25500..25529 , 25530..25559 , 25560..25589 , 25590..25619 , 25620..25649 , 25650..25679 , 25680..25709 , 25710..25739 , 25740..25769 , 25770..25799 , 25800..25829 , 25830..25859 , 25860..25889 , 25890..25919 , 25920..25949 , 25950..25979 , 25980..26009 , 26010..26039 , 26040..26069 , 26070..26099 , 26100..26129 , 26130..26159 , 26160..26189 , 26190..26219 , 26220..26249 , 26250..26279 , 26280..26309 , 26310..26339 , 26340..26369 , 26370..26399 , 26400..26429 , 26430..26459 , 26460..26489 , 26490..26519 , 26520..26549 , 26550..26579 , 26580..26609 , 26610..26639 , 26640..26669 , 26670..26699 , 26700..26729 , 26730..26759 , 26760..26789 , 26790..26819 , 26820..26849 , 26850..26879 , 26880..26909 , 26910..26939 , 26940..26969 , 26970..26999 , 27000..27029 , 27030..27059 , 27060..27089 , 27090..27119 , 27120..27149 , 27150..27179 , 27180..27209 , 27210..27239 , 27240..27269 , 27270..27299 , 27300..27329 , 27330..27359 , 27360..27389 , 27390..27419 , 27420..27449 , 27450..27479 , 27480..27509 , 27510..27539 , 27540..27569 , 27570..27599 , 27600..27629 , 27630..27659 , 27660..27689 , 27690..27719 , 27720..27749 , 27750..27779 , 27780..27809 , 27810..27839 , 27840..27869 , 27870..27899 , 27900..27929 , 27930..27959 , 27960..27989 , 27990..28019 , 28020..28049 , 28050..28079 , 28080..28109 , 28110..28139 , 28140..28169 , 28170..28199 , 28200..28229 , 28230..28259 , 28260..28289 , 28290..28319 , 28320..28349 , 28350..28379 , 28380..28409 , 28410..28439 , 28440..28469 , 28470..28499 , 28500..28529 , 28530..28559 , 28560..28589, >>Next

Quadratic-relations-and-conic-sections/161959: What is the standard equation of the circle with radius 4, and center (0,0)? A (x+4)^2 + y^2 = 16 B (x+4)^2 + (y+4)^2 = 16 C (x+4)^2 + (y+4)^2 = 0 D x^2 + y^2 = 0 E ^2 + y^2 = 4 F x^2 + y^2 = 16 I have no idea where to start on this. Id apperciate seeing the steps and the correct answer. Thank you so much for all your help! 1 solutions Answer 119342 by jim_thompson5910(28598)   on 2008-10-13 23:27:37 (Show Source): You can put this solution on YOUR website! The formula for any circle is where the center is at (h,k) and the radius is "r" So in this case, the center is (0,0) which means that h=0 and k=0. Also, the radius is 4 which means that So the equation goes from to after plugging in the given data Now simplify to get So the answer is F

Linear-systems/161952: please help: y<-5x+6 Graph the linear inequality 1 solutions Answer 119341 by jim_thompson5910(28598)   on 2008-10-13 23:02:25 (Show Source): You can put this solution on YOUR website! 1) Graph the line of to get note: the line should be a dotted or dashed line 2) Because the sign is a "<" sign, this means that we must shade the entire region below the line

Linear-equations/161951: please help: y≥-9/5x+7 Graph each linear inequality. 1 solutions Answer 119340 by jim_thompson5910(28598)   on 2008-10-13 23:00:10 (Show Source): You can put this solution on YOUR website! 1) First graph the equation . The graph of is: 2) Now since the inequality sign is a "greater than or equal to sign", this tells us to shade everything above the line (since EVERY "y" value in this region is greater than or equal to every "y" on the line)

real-numbers/161949: 50(3A-B) - 20(B-2A) 1 solutions Answer 119339 by jim_thompson5910(28598)   on 2008-10-13 22:54:59 (Show Source): You can put this solution on YOUR website! 50(3A-B) - 20(B-2A) = 50(3A)-50(B) - 20(B)-(-20)(2A) = 150A - 50B - 20B + 40A = 190A - 70B

Equations/161945: (a) (4x+2)(2x) = 32 (b) (3x+2)(9x+3) = 81 (c) log (x-3) + log (x) = 1 (d) log2 (x2 – 6x) = 3 + log2 (1-x) 1 solutions Answer 119335 by jim_thompson5910(28598)   on 2008-10-13 22:22:33 (Show Source): You can put this solution on YOUR website! I'll do the first two to get you started 1) Start with the given equation Distribute Subtract 32 from both sides Notice we have a quadratic equation in the form of where , , and Let's use the quadratic formula to solve for x Start with the quadratic formula Plug in , , and Square to get . Multiply to get Rewrite as Add to to get Multiply and to get . Simplify the square root (note: If you need help with simplifying square roots, check out this solver) or Break up the expression. or Reduce So the answers are or which approximate to or 2) Start with the given equation FOIL Subtract 81 from both sides Combine like terms. Notice we have a quadratic equation in the form of where , , and Let's use the quadratic formula to solve for x Start with the quadratic formula Plug in , , and Square to get . Multiply to get Rewrite as Add to to get Multiply and to get . Simplify the square root (note: If you need help with simplifying square roots, check out this solver) or Break up the expression. So the answers are or which approximate to or

Graphs/161944: Find the slope and y-intercept of -9x + 6y = 54 Here is what I did: -9x + 6y = 54 +9x +9x -------------- 6y = 9x + 54 6y/6 (6y over 6) = 9x/6 (9x over 6) + 54/6 (54 over 6) y = 9/6 (9 over 6) + 9 Simplified : y = 3/2x (3 over 2) + 9 So the answer I came up with is 9 is the slope, and the y-intercept is 3/2 (3 over 2). Correct?? 1 solutions Answer 119334 by jim_thompson5910(28598)   on 2008-10-13 22:18:07 (Show Source): You can put this solution on YOUR website! You work is perfect, but your conclusion is backwards. The slope is and the y-intercept is (0,9) Remember, for any slope-intercept equation the slope is "m" and the y-intercept is (0,b)

Linear-equations/161943: find the gradient of the line 2y - 3x = 5, and draw the line on a graph paper 1 solutions Answer 119332 by jim_thompson5910(28598)   on 2008-10-13 22:15:30 (Show Source): You can put this solution on YOUR website! Start with the given equation. Add to both sides. Rearrange the terms. Divide both sides by to isolate y. Break up the fraction. Reduce. So the equation is now in slope intercept form where the slope (ie gradient) is and the y-intercept is Since this tells us that the y-intercept is .Remember the y-intercept is the point where the graph intersects with the y-axis So we have one point which is (0,2.5) Now since the slope is comprised of the "rise" over the "run" this means Also, because the slope is , this means: which shows us that the rise is 3 and the run is 2. This means that to go from point to point, we can go up 3 and over 2 So starting at , go up 3 units and to the right 2 units to get to the next point Now draw a line through these points to graph So this is the graph of through the points and

Expressions-with-variables/161920: This question is from textbook 6-(-5)=5r-3 1 solutions Answer 119328 by jim_thompson5910(28598)   on 2008-10-13 21:53:03 (Show Source): You can put this solution on YOUR website! Start with the given equation. Rewrite as . Combine like terms on the left side. Add 3 to both sides Combine like terms on the left side Divide both sides by to isolate . ---------------------------------------------------------------------- Answer: So the answer is which in decimal form is .

Linear-systems/161930: the difference between two complementary angles is 50 degrees. what is the measure of the larger angle? 1 solutions Answer 119324 by jim_thompson5910(28598)   on 2008-10-13 21:45:25 (Show Source): You can put this solution on YOUR website! Complementary angles ALWAYS add to 90 degrees. So this means that . Since "difference between two complementary angles is 50 degrees", this means that So we have the system of equations: Add the equations together. You can do this by simply adding the two left sides and the two right sides separately like this: Group like terms. Combine like terms. Notice how the y terms cancel out. Simplify. Divide both sides by to isolate . Reduce. So the first angle is 70 degrees. ------------------------------------------------------------------ Now go back to the first equation. Plug in . Multiply. Subtract from both sides. Combine like terms on the right side. So the second angle is 20 degrees So our answer is and . So the larger angle is 70 degrees.

Exponents/161863: This question is from textbook McDougal Littell I'm working on expression using only positive exponents . I have 7p-6 I think the answer is 1 _________ 7p6 does this look correct? Also Y12. Y12 I think that answer is Y24 Am I right in my thinking? 1 solutions Answer 119321 by jim_thompson5910(28598)   on 2008-10-13 21:40:37 (Show Source): You can put this solution on YOUR website! I'm assuming that the expression is right? If it is, then where ---------------------------------------- Or... If the expression is , then where Note: the only difference between the two expressions is a change of parenthesis

logarithm/161683: solve 1.6 = logx 1 solutions Answer 119179 by jim_thompson5910(28598)   on 2008-10-13 00:09:22 (Show Source): You can put this solution on YOUR website! Start with the given equation Rewrite the equation using the property: ====> Raise 10 to the 1.6th power to get 39.81 (this is approximate) So the solution is approximately

Numeric_Fractions/161694: How do you solve 50 divided by x equals .96? 1 solutions Answer 119177 by jim_thompson5910(28598)   on 2008-10-13 00:06:49 (Show Source): You can put this solution on YOUR website! Start with the given equation Multiply both sides by "x" Divide both sides by 0.96 Divide So the solution is approximately

Equations/161695: 2(3+7x) - (1+15x)=2 2(4+3r) = 3(r +1) + 11 1/4x - 4 = 3/2x+3/4x 3/4(a-2)-1/3(5-2a)=-2 1 solutions Answer 119176 by jim_thompson5910(28598)   on 2008-10-13 00:05:20 (Show Source): You can put this solution on YOUR website! I'll do the first one to get you started Start with the given equation. Distribute. Combine like terms on the left side. Subtract from both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the answer is

Exponents-negative-and-fractional/161685: (1/16)^-(1/4) = 1 solutions Answer 119175 by jim_thompson5910(28598)   on 2008-10-13 00:02:57 (Show Source): You can put this solution on YOUR website!

Linear-systems/161680: This question is from textbook intermediate algebra this is an elimination problem i can not get it. 3x+2y=3 9x-8y=-2 1 solutions Answer 119158 by jim_thompson5910(28598)   on 2008-10-12 20:44:42 (Show Source): You can put this solution on YOUR website! Start with the given system of equations: Multiply the both sides of the first equation by 4. Distribute and multiply. So we have the new system of equations: Now add the equations together. You can do this by simply adding the two left sides and the two right sides separately like this: Group like terms. Combine like terms. Notice how the y terms cancel out. Simplify. Divide both sides by to isolate . So the first part of the answer is ------------------------------------------------------------------ Now go back to the first equation. Plug in . Multiply. Multiply both sides by the LCD to clear any fractions. Distribute and multiply. Subtract from both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. So the second part of the answer is ========================= Answer: So the solutions are and which forms the ordered pair

Radicals/161678: i don't understand how to do this problem. 4(2+2) 1 solutions Answer 119157 by jim_thompson5910(28598)   on 2008-10-12 20:15:40 (Show Source): You can put this solution on YOUR website!

Radicals/161677: 10- 1 solutions Answer 119155 by jim_thompson5910(28598)   on 2008-10-12 19:58:50 (Show Source): You can put this solution on YOUR website!

Vectors/161537: If // v // = 2, what is //-4v//? 1 solutions Answer 119144 by jim_thompson5910(28598)   on 2008-10-12 19:16:09 (Show Source): You can put this solution on YOUR website! Let . Since ||v||=2, this means that Now let's compute : Start with the given vector Multiply both sides by -4 Distribute So this means: ||-4v||==4||v|| So this shows us that the length of ||-4v|| is simply 4 times that of ||v||. So the length of ||-4v|| is 8 units In other words, ||-4v||=8

Equations/161663: ((8x^(3/2)/y^3))^4/3 1 solutions Answer 119141 by jim_thompson5910(28598)   on 2008-10-12 19:04:07 (Show Source): You can put this solution on YOUR website! Start with the given expression Rewrite as Rewrite the fraction Distribute the outer exponent to each of the inner exponents. Multiply Reduce So simplifies to

Exponents/161664: I haven't done a problem like this for several years and I don't remember how to solve it! It's driving me crazy! Here is the problem: 1024=2^n-1. Solve for n. I don't remember how to bring the exponent (n-1) down so that I can solve for n. 1 solutions Answer 119138 by jim_thompson5910(28598)   on 2008-10-12 18:40:30 (Show Source): You can put this solution on YOUR website! There are at least two ways to solve this Method #1: Start with the given equation Rewrite 1,024 as . This is possible since Since the bases are equal (they are both 2), this means that the exponents are equal. So Set the exponents equal to one another. Add 1 to both sides. Add. So the answer is ================================================= Method #2 Start with the given equation Take the log of both sides. Rewrite the right side using the identity Divide both sides by Evaluate to get 10 Add 1 to both sides. Add. So the answer is

Polynomials-and-rational-expressions/161613: This question is from textbook College Algebra What does it mean when a number is a "zero" of a polynomial, and what the zeros have to do with the graph. Thanks! 1 solutions Answer 119090 by jim_thompson5910(28598)   on 2008-10-12 12:47:56 (Show Source): You can put this solution on YOUR website! A "zero" is a value of x that will make "y" equal to zero. For instance, the equation has the zero since . Graphically, the zeros are the same as the x-intercepts (since the x-intercepts occur when y=0).

Systems-of-equations/161600: My worksheet says: Solve the system of equations: 3X+2Y=17 2X-Y=9 Please help thanks 1 solutions Answer 119081 by jim_thompson5910(28598)   on 2008-10-12 11:18:49 (Show Source): You can put this solution on YOUR website! Start with the given system of equations: Multiply the both sides of the second equation by 2. Distribute and multiply. So we have the new system of equations: Now add the equations together. You can do this by simply adding the two left sides and the two right sides separately like this: Group like terms. Combine like terms. Notice how the y terms cancel out. Simplify. Divide both sides by to isolate . Reduce. ------------------------------------------------------------------ Now go back to the first equation. Plug in . Multiply. Subtract from both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. So our answer is and . Which form the ordered pair . This means that the system is consistent and independent. Notice when we graph the equations, we see that they intersect at . So this visually verifies our answer. Graph of (red) and (green)

Linear-equations/161509: 3/4x-5=2/3x 1 solutions Answer 118970 by jim_thompson5910(28598)   on 2008-10-11 14:23:15 (Show Source): You can put this solution on YOUR website! Start with the given equation. Multiply both sides by the LCD to clear any fractions. Distribute and multiply. Add to both sides. Subtract from both sides. Combine like terms on the left side. ---------------------------------------------------------------------- Answer: So the answer is

Equations/161510: solve for x*** (1/10) - (x-4/x) = (1/x) + (3/20) 1 solutions Answer 118969 by jim_thompson5910(28598)   on 2008-10-11 14:22:29 (Show Source): You can put this solution on YOUR website! Start with the given equation. Multiply every term by the LCD to clear the fractions. Multiply and simplify Distribute. Combine like terms on the left side. Subtract from both sides. Subtract from both sides. Combine like terms on the left side. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the answer is which approximates to .

Equations/161508: solve for x (1/x) - (x-4/x) = (1/x) + (3/20) 1 solutions Answer 118967 by jim_thompson5910(28598)   on 2008-10-11 14:12:39 (Show Source): You can put this solution on YOUR website! Start with the given equation. Multiply every term by the LCD to clear the fractions. Multiply and simplify Distribute. Combine like terms on the left side. Subtract from both sides. Subtract from both sides. Combine like terms on the left side. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the answer is which approximates to .

Graphs/161506: explain the basic method for graphing a linear equation. Please gie me an exmple and show how it would be graphed. 1 solutions Answer 118961 by jim_thompson5910(28598)   on 2008-10-11 13:27:45 (Show Source): You can put this solution on YOUR website! Let's say that you have the equation and you want to graph it. Looking at we can see that the equation is in slope-intercept form where the slope is and the y-intercept is Since this tells us that the y-intercept is .Remember the y-intercept is the point where the graph intersects with the y-axis So we have one point Now since the slope is comprised of the "rise" over the "run" this means Also, because the slope is , this means: which shows us that the rise is 1 and the run is 2. This means that to go from point to point, we can go up 1 and over 2 So starting at , go up 1 unit and to the right 2 units to get to the next point Now draw a line through these points to graph So this is the graph of through the points and

Square-cubic-other-roots/161504: 1) The Path of a falling object is given by the function s=-16t^2+v^o t+s^o where v^o represents the initial velocity in ft/sec and s^o represents the initial height in feet. A) If a rock is thrown upward what an initial velocity of 64 feet per second from the top of a 25-foot building, write the height (S) equation using this information. I got s=-16t^2+64t+25 B) How high is the rock after 1 second? I got s=-16*1^2+64*1+25 so s=73 The questions I need the help on is C)& D) C) After how many seconds will the graph reach maximum height? D) What is the maximim height? 1 solutions Answer 118960 by jim_thompson5910(28598)   on 2008-10-11 13:25:41 (Show Source): You can put this solution on YOUR website! Note: I'm replacing "s" with "y" and "t" with "x" to get the equation To answers questions C and D, we need to find the vertex. Remember, the vertex represents the highest/lowest point. In order to find the vertex, we first need to find the x-coordinate of the vertex. To find the x-coordinate of the vertex, use this formula: . Start with the given formula. From , we can see that , , and . Plug in and . Multiply 2 and to get . Divide. So the x-coordinate of the vertex is . Note: this means that the axis of symmetry is also . Now that we know the x-coordinate of the vertex, we can use it to find the y-coordinate of the vertex. Start with the given equation. Plug in . Square to get . Multiply and to get . Multiply and to get . Combine like terms. So the y-coordinate of the vertex is . So the vertex is . Since the vertex is , this means that and . So at 2 seconds, the object is at the highest point of 89 feet.

Graphs/161493: How can I solve the inequality 8x<-24 and then graph the solutions? 1 solutions Answer 118955 by jim_thompson5910(28598)   on 2008-10-11 12:07:29 (Show Source): You can put this solution on YOUR website! Start with the given inequality. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the answer is So the answer in interval notation is Also, the answer in set-builder notation is Here's the graph of the solution set

Expressions-with-variables/161481: CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM PLEASE: Find functions f and g so that h(x) = (f o g)(x). h(x) = cube root (59x^2 + 78) 1 solutions Answer 118924 by jim_thompson5910(28598)   on 2008-10-11 00:18:35 (Show Source): You can put this solution on YOUR website! There are so many possible answers (actually there are an infinite number of possible answers), but here's one simple answer Let and So Notice how I simply replaced the "x" in f(x) with to get

Distributive-associative-commutative-properties/161473: (5x-6)(5x_6) I tried to answer this but it made no sice in the end I has -25-60x24 1 solutions Answer 118923 by jim_thompson5910(28598)   on 2008-10-11 00:15:16 (Show Source): You can put this solution on YOUR website! Start with the given expression. Now let's FOIL the expression. Remember, when you FOIL an expression, you follow this procedure: Multiply the First terms:. Multiply the Outer terms:. Multiply the Inner terms:. Multiply the Last terms:. Now collect every term to make a single expression. Now combine like terms. So FOILs to . In other words, .

test/161474: (11x+3y)(x+4y) I tried to do the foil method 11x^2+44xy+3yx+12y^2 1 solutions Answer 118922 by jim_thompson5910(28598)   on 2008-10-11 00:14:09 (Show Source): You can put this solution on YOUR website! You're doing great. Now you just need to combine like terms. The terms that have "xy" and "yx" are the same terms (since you can switch the terms), which that means that is the same as . So the expression also looks like this: Now combine like terms. So FOILs to