See tutors' answers!

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


   
By Tutor
 | By Problem Number | 

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

Exponential-and-logarithmic-functions/616312: 7x^2+27x-4
1 solutions

Answer 387621 by Alan3354(30993) About Me  on 2012-05-30 16:49:37 (Show Source):
You can put this solution on YOUR website!
-------------
Do you have a question?


Exponential-and-logarithmic-functions/616315: 7-12x-4x^2
1 solutions

Answer 387618 by Alan3354(30993) About Me  on 2012-05-30 16:48:48 (Show Source):
You can put this solution on YOUR website!
-------------
Do you have a question?


Exponential-and-logarithmic-functions/616313: 15y^2-2y+7
1 solutions

Answer 387617 by Alan3354(30993) About Me  on 2012-05-30 16:48:15 (Show Source):
You can put this solution on YOUR website!
15y^2-2y+7
-------------
Do you have a question?


Signed-numbers/616275: how do you solve a negitive number and a positive number?
1 solutions

Answer 387606 by Alan3354(30993) About Me  on 2012-05-30 16:14:21 (Show Source):
You can put this solution on YOUR website!
how do you solve a negitive number and a positive number?
-------------
Numbers are not solved.
Equations are solved.


Trigonometry-basics/616295: Solve 2tan theta=2cot theta for all values of theta if theta is measured in degrees
1 solutions

Answer 387603 by Alan3354(30993) About Me  on 2012-05-30 16:09:55 (Show Source):
You can put this solution on YOUR website!
2tan theta=2cot theta
tan = cot
tan = 1/tan
tan^2 = 1
tan = ±1
theta = 45 + n*90 degs, n = ± 0,1,2,3...


Volume/616245: How many litres of water are there in 2.4m x 2.1m and 2m deep square
1 solutions

Answer 387576 by Alan3354(30993) About Me  on 2012-05-30 14:49:03 (Show Source):
You can put this solution on YOUR website!
How many litres of water are there in 2.4m x 2.1m and 2m deep square
-----------
Vol = L*W*H cubic meters
1 cubic meter = 1000 liters


Volume/616235: If 280 cubic inches of water are poured into a cylinder that is 7 inches in diameter and 12 inches tall how deep will the water be?
1 solutions

Answer 387572 by Alan3354(30993) About Me  on 2012-05-30 14:06:45 (Show Source):
You can put this solution on YOUR website!
If 280 cubic inches of water are poured into a cylinder that is 7 inches in diameter and 12 inches tall how deep will the water be?
-------------
Vol+=+pi%2Ar%5E2%2Ah
pi%2A3.5%5E2%2Ah+=+280
h =~ 7.2757 inches


Polygons/616160: A polygon has n sides. Two of its exterior angles are 72 and 35 while the remaining exterior angles are each equal to 23. Find the value of n.
1 solutions

Answer 387513 by Alan3354(30993) About Me  on 2012-05-30 10:07:38 (Show Source):
You can put this solution on YOUR website!
A polygon has n sides. Two of its exterior angles are 72 and 35 while the remaining exterior angles are each equal to 23. Find the value of n.
-------------
The sum of exterior angles is 360 degs
---- 360 - (72+35) = 253 degs
253/23 = 11 angles of 23 degs
11 + 2 = 13 sides
n = 13


Geometry_Word_Problems/616155: the area of a rectangle is 72 inČ The width is 6 inches greater than the length What expression represents the width
1 solutions

Answer 387512 by Alan3354(30993) About Me  on 2012-05-30 10:04:28 (Show Source):
You can put this solution on YOUR website!
the area of a rectangle is 72 inČ The width is 6 inches greater than the length What expression represents the width
-----------
72 = 6*12
---------
The hard way:
w*(w+6) = 72
w%5E2+%2B+6w+-+72+=+0
Now we have to factor anyway, and get w = 6, w = 12.
Sometimes the answer is obvious.
-----
If it said, "the area of a rectangle is 73 inČ The width is 6 inches greater than the length What expression represents the width"
then you have to do some math.


Linear-systems/616149: x+y=4
x-y=8
which of the 3 methods (graphing, substitution, or elimination) would you use to solve this linear system,
1 solutions

Answer 387511 by Alan3354(30993) About Me  on 2012-05-30 09:57:51 (Show Source):
You can put this solution on YOUR website!
x+y=4
x-y=8
---------
I'd use elimination, just add them.


Mixture_Word_Problems/616158: ali has 3 liters of water. he uses 950 milliters to water his plants. now how many milliters does he have left
1 solutions

Answer 387510 by Alan3354(30993) About Me  on 2012-05-30 09:55:06 (Show Source):
You can put this solution on YOUR website!
ali has 3 liters of water. he uses 950 milliters to water his plants. now how many milliters does he have left
------------
I assume you mean milliliters.
Hint: 3 liters = 3000 milliliters


Functions/616157: if the varies directly as x what is the value of y in these ordered paris?
(5,20) and(15,y)
1 solutions

Answer 387509 by Alan3354(30993) About Me  on 2012-05-30 09:54:04 (Show Source):
You can put this solution on YOUR website!
if the varies directly as x what is the value of y in these ordered paris?
(5,20) --> y = 4x
-----------
(15,y)


Money_Word_Problems/616020: I get $1.00 each year to correspond with my age ($1.00 at at 1, $2.00 at age 2, etc.) each year until age 100. How much $$ do I have at 100?
1 solutions

Answer 387462 by Alan3354(30993) About Me  on 2012-05-29 22:01:30 (Show Source):
You can put this solution on YOUR website!
I get $1.00 each year to correspond with my age ($1.00 at at 1, $2.00 at age 2, etc.) each year until age 100. How much $$ do I have at 100?
---------
The sum of the integers from 1 to 100 = 5050.


Proofs/616027: Hi just needed some help in solving this equation it may be invalid so means that it can't be solved or it may be valid meaning it can be solved and I am stuck so not sure if I am right or not. Here it is:
VxEy(Rxy) l- VxEy(Rxy & Ez(Ryz))
Thanks
1 solutions

Answer 387460 by Alan3354(30993) About Me  on 2012-05-29 21:59:58 (Show Source):
You can put this solution on YOUR website!
VxEy(Rxy) l- VxEy(Rxy & Ez(Ryz))
----------
That's not an equation, there's no equal sign.
--> nothing to solve.


Travel_Word_Problems/616025: If you are traveling 140 MPH, how far would you travel in one second?
1 solutions

Answer 387459 by Alan3354(30993) About Me  on 2012-05-29 21:58:36 (Show Source):
You can put this solution on YOUR website!
If you are traveling 140 MPH, how far would you travel in one second?
-----
1 hour = 3600 seconds
--> 140/3600 miles
= 7/180 miles/second


Complex_Numbers/615746: What is the magnitude of the complex number 3+4i? Thank you!
1 solutions

Answer 387300 by Alan3354(30993) About Me  on 2012-05-29 09:43:41 (Show Source):
You can put this solution on YOUR website!
What is the magnitude of the complex number 3+4i? Thank you!
---------
The Mag of a+%2B+bi+=+sqrt%28a%5E2+%2B+b%5E2%29
Mag+=+sqrt%283%5E2+%2B+4%5E2%29


Surface-area/615578: what is the surface area of a sphere with a radius of 4.7 feet?
1 solutions

Answer 387247 by Alan3354(30993) About Me  on 2012-05-28 20:24:46 (Show Source):
You can put this solution on YOUR website!
what is the surface area of a sphere with a radius of 4.7 feet?
---------
Area+=+4%2Api%2Ar%5E2


Volume/615573: A cubic centimeter holds 1 milliliter of
liquid. How many liters of water to
the nearest tenth are required to fill a
rectangular prism fish tank that is
24 centimeters high, 28 centimeters
long, and 36 centimeters wide?
What is the formula for volume for
that shape?
1 solutions

Answer 387232 by Alan3354(30993) About Me  on 2012-05-28 18:43:10 (Show Source):
You can put this solution on YOUR website!
A cubic centimeter holds 1 milliliter of
liquid. How many liters of water to
the nearest tenth are required to fill a
rectangular prism fish tank that is
24 centimeters high, 28 centimeters
long, and 36 centimeters wide?
What is the formula for volume for
that shape?
--------------
Volume = L*W*H


Radicals/615555: solve radical equation
Please show steps
(x-3)^(1/2)+8=6

1 solutions

Answer 387222 by Alan3354(30993) About Me  on 2012-05-28 17:58:49 (Show Source):
You can put this solution on YOUR website!
(x-3)^(1/2)+8=6
-------
(x-3)^(1/2) = -2
Square both sides
x - 3 = 4
x = 7


Travel_Word_Problems/615547: train A leaves the station going 60 mph and train b leaves the station at 80 mph at 625 what time will train b catch up to train a at the station?
1 solutions

Answer 387221 by Alan3354(30993) About Me  on 2012-05-28 17:49:35 (Show Source):
You can put this solution on YOUR website!
train A leaves the station going 60 mph and train b leaves the station at 80 mph at 625 what time will train b catch up to train a at the station?
-----------------
They were both there at 625.


test/615433: The height of a circular pool is 6 ft. and the diameter is 16 ft. What is the volume of the pool?
1 solutions

Answer 387194 by Alan3354(30993) About Me  on 2012-05-28 13:10:29 (Show Source):
You can put this solution on YOUR website!
The height of a circular pool is 6 ft. and the diameter is 16 ft. What is the volume of the pool?
--------------
It's a cylinder.
Vol+=+pi%2Ar%5E2%2Ah cubic feet


Volume/615383: the formula for finding the volume of a u-drain
1 solutions

Answer 387193 by Alan3354(30993) About Me  on 2012-05-28 13:02:58 (Show Source):
You can put this solution on YOUR website!
the formula for finding the volume of a u-drain
---------------
Find the center-line distance, call that h.
You can measure the length on the outside of the curve, add the length of the inside curve, and divide by 2 to get the center-line distance.
-----
The CSA, cross-sectional area, = pi*r^2, r = inside radius
Vol++=+CSA%2Ah


Travel_Word_Problems/615418: Speed 160km/h for 4 hours 45 minutes,what is distance travelled?
1 solutions

Answer 387144 by Alan3354(30993) About Me  on 2012-05-28 10:23:09 (Show Source):
You can put this solution on YOUR website!
Speed 160km/h for 4 hours 45 minutes,what is distance travelled?
------------
d = r*t


Complex_Numbers/615356: Can someone PLEASE help me with this problem?! THANK YOU!
Find all the square roots of the complex number -3-2i.
Write the square roots in polar (re^(i(theta))) form, with the smaller angle first. Give your angles in degrees.
Root 1)=?
Root 2)=?
Write the square roots in a+bi form, with the smaller angle first.
Root 1)=?
Root 2)=?
1 solutions

Answer 387137 by Alan3354(30993) About Me  on 2012-05-28 09:09:01 (Show Source):
You can put this solution on YOUR website!
Find all the square roots of the complex number -3-2i.
-----------
z = -3-2i
r+=+sqrt%283%5E2+%2B+2%5E2%29+=+sqrt%2813%29
theta = atan(2/3) =~ 213.69 degs
---------
z = sqrt(13)cis(theta)
sqrt%28z%29+=+root%284%2C13%29cis%28theta%2F2%29
= 1.89883*cis(106.84)
= -0.55 + i*1.817
===============
sqrt%28z%29+=+root%284%2C13%29cis%28%28theta%2F2%29+%2B+180%29%29
= 1.89883*cis(286.845)
= 0.55 - i*1.817


Travel_Word_Problems/615361: If someone travels 26 miles in 86 minutes how fast are they traveling?
1 solutions

Answer 387136 by Alan3354(30993) About Me  on 2012-05-28 08:29:16 (Show Source):
You can put this solution on YOUR website!
If someone travels 26 miles in 86 minutes how fast are they traveling?
-----------
d = r*t
r = d/t
r = 13/43 mi/minute


Travel_Word_Problems/615403: a wheel has a diameter of 90cm it spins 2oo times. How far did it travel?

1 solutions

Answer 387135 by Alan3354(30993) About Me  on 2012-05-28 08:27:08 (Show Source):
You can put this solution on YOUR website!
a wheel has a diameter of 90cm it spins 2oo times. How far did it travel?
--------------
90*200*pi cm


Equations/615375: Amy paid $92.17 for a pair of running shoes. What was the regular price?
1 solutions

Answer 387134 by Alan3354(30993) About Me  on 2012-05-28 08:08:16 (Show Source):
You can put this solution on YOUR website!
Amy paid $92.17 for a pair of running shoes. What was the regular price?
--------------
Not enough info.


Evaluation_Word_Problems/615387: hello sir, i need your help for this question..
jim is reviewing his algebra quiz. he is very sure that one of his solutions is incorrect. which one?
1 solutions

Answer 387133 by Alan3354(30993) About Me  on 2012-05-28 08:07:31 (Show Source):
You can put this solution on YOUR website!
jim is reviewing his algebra quiz. he is very sure that one of his solutions is incorrect. which one?
----------
Not enough info.


test/615381: What is the correct way of writting 1970 in Roman Numeral pls tell
1 solutions

Answer 387132 by Alan3354(30993) About Me  on 2012-05-28 08:06:20 (Show Source):
You can put this solution on YOUR website!
What is the correct way of writting 1970 in Roman Numeral pls tell
MCMLXX


Distributive-associative-commutative-properties/615373: Make and show me a table that converts c centimeters to m millemeters.Let c=1,2,3...7.Show me a formula that converts centimeters to millimeters?
1 solutions

Answer 387131 by Alan3354(30993) About Me  on 2012-05-28 08:05:03 (Show Source):
You can put this solution on YOUR website!
Make and show me a table that converts c centimeters to m millemeters.Let c=1,2,3...7.Show me a formula that converts centimeters to millimeters?
-------------
m = 10*c
----
2 cm = 20 mm, etc


Geometry_Word_Problems/615394: What are the possible dimensions of the base?
An above ground swimming pool with the dimensions shown in the figure is to be constructed such that the volume of water in the pool is 1225 cubic feet. The height of the pool is to be 4 feet.
1 solutions

Answer 387130 by Alan3354(30993) About Me  on 2012-05-28 08:03:01 (Show Source):
You can put this solution on YOUR website!
An above ground swimming pool with the dimensions shown
-------------
Nothing is shown.