Algebra ->  Tutoring on algebra.com -> See tutors' answers!      Log On

 Tutoring Home For Students Tools for Tutors Our Tutors Register Recently Solved
 By Tutor
| By Problem Number |

Tutor:

# Recent problems solved by 'Alan3354'

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

 Probability-and-statistics/632273: what is 65% of 80 please show all work1 solutions Answer 398169 by Alan3354(30993)   on 2012-07-26 22:18:17 (Show Source): You can put this solution on YOUR website!what is 65% of 80 = (65/100)*80 = 52
 Linear-equations/632175: y = -3 If you graph this equation, irrespective of the value of x, the line will be what?1 solutions Answer 398148 by Alan3354(30993)   on 2012-07-26 19:05:44 (Show Source): You can put this solution on YOUR website!y = -3 If you graph this equation, irrespective of the value of x, the line will be what? --------- It's parallel to the x-axis The line will be 3 units below the x-axis, for all values of x
 Trigonometry-basics/632237: How do I approximate the solutions (4) to the equation cot(x)= 0 when it is on the interval of [-2pi, 2pi]. There should be 4 solutions for x, but I don't know how to solve for them. Please help me. Thank you. - Cassidy 1 solutions Answer 398147 by Alan3354(30993)   on 2012-07-26 19:03:57 (Show Source): You can put this solution on YOUR website!How do I approximate the solutions (4) to the equation cot(x)= 0 when it is on the interval of [-2pi, 2pi]. ------------- cot = x/y cot = 0 when x = 0 In that interval, = - 3pi/2, -pi/2, pi/2, 3pi/2
 Percentage-and-ratio-word-problems/632232: what is the slope of the line passing througheach pair mof points....(1,4)(2,7)1 solutions Answer 398141 by Alan3354(30993)   on 2012-07-26 18:45:09 (Show Source): You can put this solution on YOUR website!slope = change in y / change in x
 Linear-equations/632226: How do I solve -80=-4s. I got all the way up to 4*s-80=0. Now what do I do? 1 solutions Answer 398133 by Alan3354(30993)   on 2012-07-26 18:12:08 (Show Source): You can put this solution on YOUR website!How do I solve -80=-4s. I got all the way up to 4*s-80=0. Now what do I do? -80=-4s Multiply by -1 80 = 4s Divide by 4 20 = s s = 20
 Volume/632058: A fish tank at an aquarium is 20 m long by 20 m wide by 8 m deep a) determine the volume of the tank in cubic meters b)determine the number of liters of water the tank holds c)determine the weight of the water in kilometers1 solutions Answer 398069 by Alan3354(30993)   on 2012-07-26 15:15:36 (Show Source): You can put this solution on YOUR website!A fish tank at an aquarium is 20 m long by 20 m wide by 8 m deep a) determine the volume of the tank in cubic meters Vol = 20*20*8 = 3200 cubic meters ---------------------- b)determine the number of liters of water the tank holds 1 cu meter = 1000 liters -------------------- ==================== c)determine the weight of the water in kilometers ---------------- Water weighs ~1 kilogram per liter. Not kilometers
 Trigonometry-basics/632144: solve the equation in the interval [0,2,pi]. if there is more than one solution write them separated by commas. : (sin(x))^2=1/36, so X=?1 solutions Answer 398066 by Alan3354(30993)   on 2012-07-26 14:54:52 (Show Source): You can put this solution on YOUR website!(sin(x))^2=1/36 ----------- sin(x) = -1/6, +1/6 sin = -1/6 x = ~350.4 degs, 189.59 degs ----------------- sin = 1/6 x = 9.59 degs, 170.41 degs
 Volume/632171: The figure below has an area of 27 square feet. Find the length of this figure. Length is x+3. height is x-31 solutions Answer 398060 by Alan3354(30993)   on 2012-07-26 14:40:52 (Show Source): You can put this solution on YOUR website!The figure below has an area of 27 square feet. Find the length of this figure. Length is x+3. height is x-3 ----------- How far below? I don't see a figure.
 Trigonometry-basics/632112: without using calculator, show that sin^2 30 degree + sin^2 45 degree + sin^2 60 degree = 3/21 solutions Answer 398026 by Alan3354(30993)   on 2012-07-26 12:09:57 (Show Source): You can put this solution on YOUR website!without using calculator, show that sin^2 30 degree + sin^2 45 degree + sin^2 60 degree = 3/2 ------------ sin^2 30 degree + sin^2 45 degree + sin^2 60 degree = 3/2 cos(60) = sin(30) sin^2 30 degree + sin^2 45 degree + cos^2 30 degree = 3/2 Sin^2(30) + cos^2(30) = 1 sin^2(45) + 1 = 3/2 sin(45) = sqrt(2)/2 sin^2(45) = 1/2 1 + 1/2 = 3/2
 Polynomials-and-rational-expressions/632097: completely factor the expression 16t^3 - 50t^2 + 36t a. 2t(8t - 25t + 18) b. prime c. 2t(8t + 9)(t + 2) d. 2t(8t - 9)(t - 2) I dont see how it could any of these, when you would subtract the intergers and then the numbers..Im lost1 solutions Answer 398010 by Alan3354(30993)   on 2012-07-26 10:48:30 (Show Source): You can put this solution on YOUR website!completely factor the expression 16t^3 - 50t^2 + 36t a. 2t(8t - 25t + 18) b. prime c. 2t(8t + 9)(t + 2) d. 2t(8t - 9)(t - 2) ------------- d
 Exponents/632074: Multiply: (x-1)(x+1) Multiply: (x-1)(x^2+x+1) Need help ASAP Please! Thanks so much! 1 solutions Answer 397999 by Alan3354(30993)   on 2012-07-26 09:44:27 (Show Source): You can put this solution on YOUR website!Multiply: (x-1)(x+1) = x(x+1) - 1(x+1) = x^2+x -x-1 = x^2 - 1 =========== Multiply: (x-1)(x^2+x+1) Same method as above. = x^3 - 1
 Circles/631982: on the circle x^2+y^2+2x-8y+7=0. Find points at distance 5 from (2,-2)1 solutions Answer 397946 by Alan3354(30993)   on 2012-07-25 23:04:12 (Show Source): You can put this solution on YOUR website!on the circle x^2+y^2+2x-8y+7=0. Find points at distance 5 from (2,-2) -------------- The 2 points are the intersection of the given circle and a circle of radius 5 about the given point. The 2nd circle is (x-2)^2 + (y+2)^2 = 25 x^2 - 4x + 4 + y^2 + 4y + 4 = 25 x^2 + y^2 - 4x + 4y = 17 x^2 + y^2 + 2x - 8y = -7 --------------------------- Subtract -6x + 12y = 24 x = 2y -4 is the eqn of the line thru the 2 points Sub for x in either equation of a circle. x^2 + y^2 - 4x + 4y = 17 (2y-4)^2 + y^2 - 4(2y-4) + 4y = 17 5y^2 - 20y + 15 = 0 y^2 - 4y + 3 = 0 y = 1, x = -2 --> (-2,1) ------- y = 3, x = 2 --> (2,3)
 test/631959: How do you solve 2^(3x-7)1 solutions Answer 397926 by Alan3354(30993)   on 2012-07-25 20:34:28 (Show Source): You can put this solution on YOUR website!How do you solve 2^(3x-7) -------------- It's not an equation, so it's not to be solved.
 Geometry_Word_Problems/631937: Can you draw a non-rectangular shape that has an area of 45 square feet and perimeter of 28 feet? 1 solutions Answer 397925 by Alan3354(30993)   on 2012-07-25 20:33:23 (Show Source): You can put this solution on YOUR website!Can you draw a non-rectangular shape that has an area of 45 square feet and perimeter of 28 feet? -------- Yes, I can.
 Geometric_formulas/631915: Find the area of trapezoid ABCD if the vertices are A(1,5), B(7,3),C(2,-4), and D(-7,-1)1 solutions Answer 397914 by Alan3354(30993)   on 2012-07-25 19:18:51 (Show Source): You can put this solution on YOUR website!Find the area of trapezoid ABCD if the vertices are A(1,5), B(7,3),C(2,-4), and D(-7,-1) ----------- Do these like this: +A +B +C +D +A +1 +7 +2 -7 +1 +5 +3 -4 -1 +5 ------- Add the diagonals starting at the upper left. = 1*3 + 7*-4 + 2*-1 + -7*5 = 3 - 28 - 2 - 35 = -62 --------- Add the diagonals starting at the lower left. = 5*7 + 3*2 + -4*-7 + -1*1 = 35 + 6 + 28 - 1 = +68 -------- Then, Area = 1/2 the absolute value of the difference Diff = 130 Area = 65 sq units. =========================== This works for all polygons, any number of sides.
 Linear-equations/631904: How do you do questions like these - slope=2,y-int=3 . thank you very much1 solutions Answer 397913 by Alan3354(30993)   on 2012-07-25 19:09:43 (Show Source): You can put this solution on YOUR website!How do you do questions like these - slope=2,y-int=3 . thank you very much ----------- We don't do questions, we answer questions. What you posted is not a question anyway. You're very welcome.
 Money_Word_Problems/631935: working 2 part time jobs .how long would it take to reach 7000 dollars1 solutions Answer 397912 by Alan3354(30993)   on 2012-07-25 19:05:09 (Show Source): You can put this solution on YOUR website!working 2 part time jobs .how long would it take to reach 7000 dollars ---------- If you get paid \$7000 per hour, it won't take long. 1 hour.
 absolute-value/631940: Do the equations x = 4y + 1 and x = 4y – 1 have the same solution? How might you explain your answer to someone who has not learned algebra?1 solutions Answer 397910 by Alan3354(30993)   on 2012-07-25 19:02:34 (Show Source): You can put this solution on YOUR website!Do the equations x = 4y + 1 and x = 4y – 1 have the same solution? How might you explain your answer to someone who has not learned algebra? ----------- Both of the equations taken separately have an infinite number of solutions. If you graph them, you get a straight line, of infinite length, and every point on the line is a solution. ------------- But, none of the infinite number of solutions fit both equations. If you graph them both, you get 2 parallel lines with no intersection. ==================== For an algebraic approach (not graphical), since both RH sides equal y, they equal each other: 4y + 1 = 4y - 1 Subtract 4y +1 = -1 That is termed "inconsistent." --> no solution
 Probability-and-statistics/631819: A company ID card contains 7 digits, such as 92-71-042. How many different ID numbers can be formed?1 solutions Answer 397877 by Alan3354(30993)   on 2012-07-25 16:00:06 (Show Source): You can put this solution on YOUR website!A company ID card contains 7 digits, such as 92-71-042. How many different ID numbers can be formed? ------------ If all combinations are allowed, such as 00-00-000, it's 10^7 = 10 million.
 Linear-systems/631881: Find equation in slope-intercept form Question: through (-8,1), with undefined slope 1 solutions Answer 397873 by Alan3354(30993)   on 2012-07-25 15:56:23 (Show Source): You can put this solution on YOUR website!Find equation in slope-intercept form Question: through (-8,1), with undefined slope ---------------- Undefined is parallel to the y-axis, often called vertical. The x is constant for all points. --> x = -8 There's is no y-intercept, it's parallel to the y-axis.
 Square-cubic-other-roots/631885: Simplify : √3/5 Thank you ! Please show work. I got: √3/5 because they cannot be simplified but am worried its uncorrect. Thank you !!1 solutions Answer 397870 by Alan3354(30993)   on 2012-07-25 15:52:44 (Show Source): You can put this solution on YOUR website!Is it ? or