Tutor:

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

---

Recent problems solved by 'Alan3354'

Alan3354 answered: 30973 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 , 28590..28619 , 28620..28649 , 28650..28679 , 28680..28709 , 28710..28739 , 28740..28769 , 28770..28799 , 28800..28829 , 28830..28859 , 28860..28889 , 28890..28919 , 28920..28949 , 28950..28979 , 28980..29009 , 29010..29039 , 29040..29069 , 29070..29099 , 29100..29129 , 29130..29159 , 29160..29189 , 29190..29219 , 29220..29249 , 29250..29279 , 29280..29309 , 29310..29339 , 29340..29369 , 29370..29399 , 29400..29429 , 29430..29459 , 29460..29489 , 29490..29519 , 29520..29549 , 29550..29579 , 29580..29609 , 29610..29639 , 29640..29669 , 29670..29699 , 29700..29729 , 29730..29759 , 29760..29789 , 29790..29819 , 29820..29849 , 29850..29879 , 29880..29909 , 29910..29939 , 29940..29969 , 29970..29999 , 30000..30029 , 30030..30059 , 30060..30089 , 30090..30119 , 30120..30149 , 30150..30179 , 30180..30209 , 30210..30239 , 30240..30269 , 30270..30299 , 30300..30329 , 30330..30359 , 30360..30389 , 30390..30419 , 30420..30449 , 30450..30479 , 30480..30509 , 30510..30539 , 30540..30569 , 30570..30599 , 30600..30629 , 30630..30659 , 30660..30689 , 30690..30719 , 30720..30749 , 30750..30779 , 30780..30809 , 30810..30839 , 30840..30869 , 30870..30899 , 30900..30929 , 30930..30959 , 30960..30989, >>Next

Word_Problems_With_Coins/293394: I have 12 coins that equal $1.80 made up of nickels, dimes, and quartars. how many of each do i have? 1 solutions Answer 211820 by Alan3354(30993)   on 2010-04-18 10:28:50 (Show Source): You can put this solution on YOUR website! 5 quarters, 4 dimes and 3 nickels

Linear-systems/293396: I have to solve and verify this question. (4a-2)/5 - 1/2 = (3a+7)/2-1 Thanks for your help!! 1 solutions Answer 211814 by Alan3354(30993)   on 2010-04-18 10:16:32 (Show Source): You can put this solution on YOUR website! Multiply by 10 to eliminate the fractions.

Surface-area/293409: what is the area of an octagon which has sides 2m in length? 1 solutions Answer 211809 by Alan3354(30993)   on 2010-04-18 10:06:49 (Show Source): You can put this solution on YOUR website! The area of any regular polygon of n sides of length s is: = 8*4/4 * cot(22.5º) = =~ 19.313 sq meters

Polynomials-and-rational-expressions/293266: 2(x+2(-3/2x-1))= x/3 1 solutions Answer 211802 by Alan3354(30993)   on 2010-04-18 09:24:58 (Show Source): You can put this solution on YOUR website! 2(x+2(-3/2x-1))= x/3 6(x+2(-3/2x-1))= x 6(x + (-3x-2)) = x 6(-2x-2) = x -12x - 12 = x 13x = -12 x = -12/13

Linear-systems/293405: I need to solve and verify. 1/5(a-1) = 1/3(2a-3) Thanks everyone! 1 solutions Answer 211800 by Alan3354(30993)   on 2010-04-18 09:14:36 (Show Source): You can put this solution on YOUR website! Multiply by 15

Exponential-and-logarithmic-functions/293403: Please help me solve this equation: 1 solutions Answer 211799 by Alan3354(30993)   on 2010-04-18 09:13:05 (Show Source): You can put this solution on YOUR website! It's not an equation. All equations have an equal sign. There are 3 variables, you didn't say which one to solve for, but since it's not an equation, it can't be solved anyway. ----------------- It can be simplified some. = = -------------- From there it can be expanded, but that's not simplification. = = The 16 can be factored out: = All versions are equal. Simplification can be a matter of opinion.

Linear-equations/293402: what is the slope of the graph of 4x+5y=10 1 solutions Answer 211798 by Alan3354(30993)   on 2010-04-18 09:08:00 (Show Source): You can put this solution on YOUR website! Solve for y. The slope is the coefficient of x

Problems-with-consecutive-odd-even-integers/293379: The average of 4 consecutive even numbers is 9. Which of these is the first number? (a) 6 (b) 4 (c) 8 (d) 10 (e) 12 1 solutions Answer 211789 by Alan3354(30993)   on 2010-04-18 07:49:22 (Show Source): You can put this solution on YOUR website! The average of 4 consecutive even numbers is 9. Which of these is the first number? 2 will be less than 9, and 2 will be more than 9. --> 6 & 8 and 10 & 12 (a) 6 (b) 4 (c) 8 (d) 10 (e) 12

Trigonometry-basics/293289: if x is a positive acute angle, solve 2 sin radical 3 to the nearest degree ? 1 solutions Answer 211765 by Alan3354(30993)   on 2010-04-17 21:47:06 (Show Source): You can put this solution on YOUR website! There's nothing to solve, it's not an equation. ----------------

logarithm/293327: solve for x correct to four decimal places. e^-4x=5.8 1 solutions Answer 211764 by Alan3354(30993)   on 2010-04-17 21:31:48 (Show Source): You can put this solution on YOUR website! solve for x correct to four decimal places. e^-4x=5.8 -------------- -4x = ln(5.8) x = -ln(5.8)/4 Use a calculator from here

real-numbers/293312: Can the word "RATES" be played from the letters A, E, O, N, R, S, T as the first move in a Scrabble game? Explain your answer. 1 solutions Answer 211758 by Alan3354(30993)   on 2010-04-17 21:14:59 (Show Source): You can put this solution on YOUR website! The letters are available, so it can. Why not? What's to explain?

Probability-and-statistics/293230: If two people are selected at random, find the probability that they have the same birthday (both month and day). 1 solutions Answer 211719 by Alan3354(30993)   on 2010-04-17 17:12:39 (Show Source): You can put this solution on YOUR website! The bday of the 1st person doesn't matter, it can be any day. The chance of the 2nd choice matching the 1st is 1 in 365 (ingoring leap year). --> 1 in 365

Linear-equations/293268: When using the addition or substitution method, how can you tell if a system of linear equations has infinitely many solutions? What is the relationship between the graphs of the two equations? 1 solutions Answer 211717 by Alan3354(30993)   on 2010-04-17 17:03:44 (Show Source): You can put this solution on YOUR website! The method doesn't matter. ------------- If the graphs intersect, the point of intersection is the ONE solution. If they coincide, there are an infinite # of solutions. If they are parallel, there is no intersection, and no solution.

Quadratic_Equations/293255: solve by completing the square 3/8x^2 = 1/8 - x Get 0 on one side: 3/8x^2 + x - 1/8 = 0 Divide both sides by 8 and then you get: 3x^2+8x-1 =0 Then I make the coefficient of x^2 equal to 1, I divide both sides by 3, term by term. Then I get x^2 + 8/3 - 1/3 = 0 This is where I get confused. I need help completing the square now. I know I square 1/2(8/3)^2 and that gives me a square and I add 16/9 to both sides. 1 solutions Answer 211698 by Alan3354(30993)   on 2010-04-17 15:46:04 (Show Source): You can put this solution on YOUR website! solve by completing the square 3/8x^2 = 1/8 - x Get 0 on one side: 3/8x^2 + x - 1/8 = 0 Divide both sides by 8 and then you get: 3x^2+8x-1 =0 *** Actually, you multiplied by 8, but good work. ------------------------------------ Then I make the coefficient of x^2 equal to 1, I divide both sides by 3, term by term. Then I get x^2 + 8/3 - 1/3 = 0 *** 8x/3 This is where I get confused. I need help completing the square now. I know I square 1/2(8/3)^2 and thaat gives me a square and I add 16/9 to both sides. ----------------- x^2 + 8x/3 - 1/3 = 0 Move the coefficient to the right side Then add ((8/3)/2)^2 to both sides Can you take it from there?

Linear-systems/293238: Graph the linear equation. -4x - 36y = -36 1 solutions Answer 211694 by Alan3354(30993)   on 2010-04-17 15:21:10 (Show Source): You can put this solution on YOUR website! -4x - 36y = -36 Make it easier, divide by -4 x + 9y = 4 ------------ To graph it: It's a straight line. All you need is 2 points. Pick 2 values for x, and find y, or vice versa, or one of each. ------------------------- Plot those 2 points. Draw a line thru them.

Coordinate-system/293250: y=-2x+4 1 solutions Answer 211693 by Alan3354(30993)   on 2010-04-17 14:58:55 (Show Source): You can put this solution on YOUR website! That's nice. Do you have a question?

Graphs/293245: Find the equation of each line. write each answer in slope intercept form. The line in parallel to -3x + 2y= 9 and contains the point (-2,1) 1 solutions Answer 211692 by Alan3354(30993)   on 2010-04-17 14:47:10 (Show Source): You can put this solution on YOUR website! A line and a point example. Write in standard form the eqation of a line that satisfies the given conditions. Perpendicular to 9x+3y=36, through (1,2) ----------------- Find the slope of the line. Do that by putting the equation in slope-intercept form, y = mx + b. That means solve for y. 9x+3y = 36 3y= - 9x + 36 y = -3x + 13 The slope, m = -3 ------------------ The slope of lines parallel is the same. The slope of lines perpendicular is the negative inverse, m = +1/3 ---------------- Use y = mx + b and the point (1,2) to find b. 2 = (1/3)*1 + b b = 5/3 The equation is y = (1/3)x + 5/3 (slope-intercept form) x - 3y = -5 (standard form) ------------------------ For further assistance, or to check your work, email me via the thank you note, or at MoralLoophole@aol.com

Linear-equations/291733: Find an equation of the line containing the given pair of points: (-2 ,3) and (-4, 6). Show your work please. 1 solutions Answer 211691 by Alan3354(30993)   on 2010-04-17 14:46:32 (Show Source): You can put this solution on YOUR website! Given 2 points example. Find the equation of the line thru the points (2,1) and (3,5) --------------------- This is a 2 step process. First find the slope of the line thru the points. slope, m = diffy/diffx m = (5-1)/(3-2) m = 4 --------- Now use y = mx + b with either point to find b, the y-intercept. y = mx + b 5 = 4*3 + b b = -7 ------- y = mx + b y = 4x - 7 is the answer. ------------------------ Another approach using determinants: |x y 1| |2 1 1| = 0 |3 5 1| -------- x(1-5) - y(2-3) + 1(10-3) = 0 -4x + y + 7 = 0 y = 4x - 7 --------- For further assistance, or to check your work, email me via the thank you note or at MoralLoophole@aol.com

Linear-equations/293248: -Find the missing coordinates of the given points. Please show work. -Plot those points and graph the linear equation. 5x - 7y = 35 (0,),(,0) 1 solutions Answer 211690 by Alan3354(30993)   on 2010-04-17 14:45:45 (Show Source): You can put this solution on YOUR website! Do it like this one: Find the y coordinates of the given points. Please show work. -Plot those points and graph the linear equation. y = 4x - 1 ------------- (0,) x = 0 y = 4*0 - 1 y = 1 --> (0,-1) ----------- (1,) x = 1 y = 4*1 - 1 y = 3 --> (1,3) ---------- (2,) You do this one.

Linear-equations/293249: -Find the missing coordinates of the given points.Please show work. -Plot those points and graph the linear equation. 7x + 2y = 14 (0,),(,0) 1 solutions Answer 211689 by Alan3354(30993)   on 2010-04-17 14:45:18 (Show Source): You can put this solution on YOUR website! Do it like this one: Find the y coordinates of the given points. Please show work. -Plot those points and graph the linear equation. y = 4x - 1 ------------- (0,) x = 0 y = 4*0 - 1 y = 1 --> (0,-1) ----------- (1,) x = 1 y = 4*1 - 1 y = 3 --> (1,3) ---------- (2,) You do this one.

Linear-equations/293246: -Find the y coordinates of the given points. Please show work. -Plot those points and graph the linear equation. y = 4x - 1 (0,),(1,),(2,) 1 solutions Answer 211688 by Alan3354(30993)   on 2010-04-17 14:44:54 (Show Source): You can put this solution on YOUR website! Find the y coordinates of the given points. Please show work. -Plot those points and graph the linear equation. y = 4x - 1 ------------- (0,) x = 0 y = 4*0 - 1 y = 1 --> (0,-1) ----------- (1,) x = 1 y = 4*1 - 1 y = 3 --> (1,3) ---------- (2,) You do this one.

logarithm/293225: How do you solve this Logarithm? Log base 2x =Logbase 2 5+3 1 solutions Answer 211684 by Alan3354(30993)   on 2010-04-17 13:48:36 (Show Source): You can put this solution on YOUR website! x = 8

Polynomials-and-rational-expressions/293201: Factor completely. If the polynomial is prime, state this. x3 + 3x2 - 28x 1 solutions Answer 211662 by Alan3354(30993)   on 2010-04-17 10:47:17 (Show Source): You can put this solution on YOUR website! Hint: 28 = 4*7

Polynomials-and-rational-expressions/293207: Solve by factoring and using the principle of zero products. x2 + 6x - 16 = 0 Thank you 1 solutions Answer 211657 by Alan3354(30993)   on 2010-04-17 10:37:47 (Show Source): You can put this solution on YOUR website! Here's a hint: 16 = 2*8

Reduction-of-unit-multipliers/293133: A graduated cylinder contains 137 mL of water. A 16.0g piece of iron (density = 7.86 ) and a 15.0g(density= 11.3g/mL) piece of lead are added. What is the new water level in the cylinder? 1 solutions Answer 211636 by Alan3354(30993)   on 2010-04-17 09:33:12 (Show Source): You can put this solution on YOUR website! Not enough info (still). Suppose the cylinder is 1 foot in diameter - the level would rise slightly. Suppose the cylinder is 1 inch in diameter - it would rise 144 times as much. ---------------- 16 grams of Fe --> 2.0356 cc 15 grams of PB --> 1.3274 cc 3.63 cc of water is displaced. ------------------------------- The volume of water = After the addition of the metal:

Inequalities/293179: In order for a chemical reaction to take place, the Fahrenheit temperature of the reagents must be at least 184.49 degrees F. Find the Celsius temperatures at which the reaction may occur. Use C = 5/9 (F - 32 ). Round the answer to the nearest hundredth 1 solutions Answer 211630 by Alan3354(30993)   on 2010-04-17 09:22:59 (Show Source): You can put this solution on YOUR website! C = 5/9 (F - 32 ) Sub 184.49 for F, find C. Why not do it?

Polynomials-and-rational-expressions/293192: 1/2-1/4 divided by 3/8+1/16 I got 9/16-4/16 divided by 6/16+1/16 answer 6/16 times 16/1 cancel the 16's and it is 5 1 solutions Answer 211628 by Alan3354(30993)   on 2010-04-17 09:20:31 (Show Source): You can put this solution on YOUR website! 1/2-1/4 divided by 3/8+1/16 I got 9/16-4/16 divided by 6/16+1/16 ***** 1/2 = 8/16, not 9/16 = (4/16)/(7/16) = 4/7 ---------- ---------- answer 6/16 times 16/1 cancel the 16's *** ??? 6+1 = 7/16 and it is 5

Equations/293173: Find the equation of straight line passing through the point (2,3) and parallel to the straight line 2X-y=5 1 solutions Answer 211608 by Alan3354(30993)   on 2010-04-17 07:33:04 (Show Source): You can put this solution on YOUR website! A line and a point example. Write in standard form the eqation of a line that satisfies the given conditions. Perpendicular to 9x+3y=36, through (1,2) ----------------- Find the slope of the line. Do that by putting the equation in slope-intercept form, y = mx + b. That means solve for y. 9x+3y = 36 3y= - 9x + 36 y = -3x + 13 The slope, m = -3 ------------------ The slope of lines parallel is the same. The slope of lines perpendicular is the negative inverse, m = +1/3 ---------------- Use y = mx + b and the point (1,2) to find b. 2 = (1/3)*1 + b b = 5/3 The equation is y = (1/3)x + 5/3 (slope-intercept form) x - 3y = -5 (standard form) ------------------------ For further assistance, or to check your work, email me via the thank you note, or at MoralLoophole@aol.com

Quadratic_Equations/293111: what is 5x to the second power-68-192 1 solutions Answer 211577 by Alan3354(30993)   on 2010-04-16 20:23:53 (Show Source): You can put this solution on YOUR website!

Probability-and-statistics/293084: 84°13'- 27°45' 1 solutions Answer 211570 by Alan3354(30993)   on 2010-04-16 19:27:39 (Show Source): You can put this solution on YOUR website! = 56º 28'

Unit_Conversion_Word_Problems/293078: How would i solve this problem?..step-by-step please. A graduated cylinder contains 137mL of water. A 16.0g piece of iron (density = 7.86g/cm^3 ) and a 15.0g piece of lead are added. What is the new water level in the cylinder? 1 solutions Answer 211567 by Alan3354(30993)   on 2010-04-16 19:26:01 (Show Source): You can put this solution on YOUR website! What's the density of lead, and what's the level before the metals are added?