Question Number 137750 by Lekhraj last updated on 06/Apr/21 Commented by som(math1967) last updated on 06/Apr/21 $$\left(\mathrm{35},\mathrm{20},\mathrm{8},\mathrm{5},\mathrm{1}\right) \\ $$$$\left(\mathrm{24},\mathrm{18},\mathrm{15},\mathrm{10},\mathrm{2}\right) \\ $$ Commented by Rasheed.Sindhi last…
Question Number 6672 by FilupSmith last updated on 11/Jul/16 $$\mathrm{If}\:\mathrm{you}\:\mathrm{pick}\:\mathrm{two}\:\mathrm{random}\:\mathrm{points}\:\mathrm{on}\:\mathrm{a}\:\mathrm{circle}'\mathrm{s} \\ $$$$\mathrm{circumference}\:\mathrm{with}\:\mathrm{radius}\:\mathrm{1},\:\mathrm{what}\:\mathrm{is} \\ $$$$\mathrm{the}\:\mathrm{average}\:\mathrm{area}\:\mathrm{between}\:\mathrm{the} \\ $$$$\mathrm{two}\:\mathrm{points}\:\mathrm{and}\:\mathrm{the}\:\mathrm{origin}? \\ $$ Commented by Yozzii last updated on 11/Jul/16…
Question Number 137746 by AzizMuzeifa last updated on 06/Apr/21 Answered by bemath last updated on 06/Apr/21 $$\mathrm{1}.{x}^{\mathrm{2}} +\mathrm{1}.{x}\:=\:\mathrm{1}.\mathrm{4}^{\mathrm{3}} +\mathrm{0}+\mathrm{2}.\mathrm{4}+\mathrm{0} \\ $$$${x}^{\mathrm{2}} +{x}−\mathrm{72}=\mathrm{0} \\ $$$$\left({x}+\mathrm{9}\right)\left({x}−\mathrm{8}\right)=\mathrm{0} \\…
Question Number 6648 by Tawakalitu. last updated on 07/Jul/16 $${What}\:{mass}\:{of}\:{ice}\:{at}\:\:−\mathrm{14}\:{will}\:{be}\:{needed}\:{to}\:{cool}\:\mathrm{200}\:{cm}^{\mathrm{3}} \:{of} \\ $$$${an}\:{orange}\:{drink}\:\left({essentially}\:{water}\right)\:{from}\:\mathrm{25}°{C}\:\:{to}\:\:\mathrm{10}°{C} \\ $$$$\left({specific}\:{latent}\:{heat}\:{of}\:{fusion}\:{of}\:{ice}\:=\:\mathrm{3}.\mathrm{36}\:×\:\mathrm{10}^{\mathrm{5}} \:{jkg}^{−\mathrm{1}} \right. \\ $$$${specific}\:{heat}\:{capacity}\:{of}\:{ice}\:=\:\mathrm{2100}\:{jkg}^{−\mathrm{1}} {k}^{−\mathrm{1}} \\ $$$${specific}\:{heat}\:{capacity}\:{of}\:{water}\:=\:\mathrm{4200}\:{jkg}^{−\mathrm{1}} {k}^{−\mathrm{1}} . \\…
Question Number 6638 by Tawakalitu. last updated on 07/Jul/16 $${The}\:{radius}\:{of}\:{curvature}\:{of}\:{a}\:{thin}\:{equiconvex}\:{lens}\:{is}\:\mathrm{40}.\mathrm{0}\:{cm} \\ $$$${the}\:{lens}\:{is}\:{made}\:{of}\:{glass}\:{of}\:{refractive}\:{index}\:\mathrm{1}.\mathrm{660}.\:\:{find}\:{the}\: \\ $$$${position}\:{of}\:{the}\:{image}\:{of}\:{an}\:{object}\:{placed}\:{on}\:{the}\:{axis}\:{of}\:{the}\: \\ $$$${axis}\:{of}\:{the}\:{lens}\:{at}\:{a}\:{distance}\:{of}\:\mathrm{50}.\mathrm{0}\:{mm}\:\:{from}\:{the}\:{pole}. \\ $$$$ \\ $$ Terms of Service Privacy Policy…
Question Number 6630 by Tawakalitu. last updated on 06/Jul/16 $${A}\:{small}\:{source}\:{of}\:{sound}\:{emit}\:{energy}\:{uniformly}\:{in}\:{all}\: \\ $$$${direction}\:{for}\:{a}\:{particular}\:{frequency},\:{the}\:{intensity}\:{of}\:{sound}\: \\ $$$${at}\:{a}\:{distane}\:\mathrm{2}.\mathrm{0}{m}\:{from}\:{the}\:{source}\:{is}\:\mathrm{1}.\mathrm{0}\:×\:\mathrm{10}^{−\mathrm{5}} \:\:{and}\: \\ $$$${corresponds}\:{to}\:{amplitude}\:{of}\:{oscillation}\:{on}\:{the}\:{air}\:{molecules} \\ $$$${of}\:\:\mathrm{7}{u}\:.\:{assuming}\:{sound}\:{is}\:{propagated}\:{with}\:{any}\:{loss}\:{of}\:{energy} \\ $$$${calculate}: \\ $$$$\left(\mathrm{1}\right)\:{Intensity}\:{of}\:{sound} \\ $$$$\left(\mathrm{2}\right)\:{the}\:{amplitude}\:{of}\:{oscillation}\:{of}\:{the}\:{air}\:{molecules}…
Question Number 72153 by 20190927 last updated on 25/Oct/19 $$\int\frac{\mathrm{sin}\:^{\mathrm{3}} \mathrm{x}}{\:\sqrt{\mathrm{cos}\:\mathrm{x}}}\mathrm{dx} \\ $$$$\int\mathrm{sin}\left(\mathrm{lnx}\right)\mathrm{dx} \\ $$ Commented by Prithwish sen last updated on 25/Oct/19 $$\left.\boldsymbol{\mathrm{a}}\right)\:\mathrm{let}\:\mathrm{cosx}\:=\:\mathrm{t}^{\mathrm{2}} \Rightarrow−\mathrm{sinx}\:\mathrm{dx}=\:\mathrm{2tdt}…
Question Number 6609 by Temp last updated on 05/Jul/16 $$\mathrm{You}\:\mathrm{have}\:\mathrm{a}\:\mathrm{1×1}\:\mathrm{cm}\:\mathrm{square}.\:\mathrm{If}\:\mathrm{you}\:\mathrm{pick} \\ $$$$\mathrm{two}\:\mathrm{random}\:\mathrm{points}\:\mathrm{inside}\:\mathrm{the}\:\mathrm{square}, \\ $$$$\mathrm{what}\:\mathrm{is}\:\mathrm{the}\:\mathrm{average}\:\mathrm{distance}\:\mathrm{between} \\ $$$$\mathrm{those}\:\mathrm{points}? \\ $$ Commented by prakash jain last updated on…
Question Number 6583 by Tawakalitu. last updated on 04/Jul/16 $${An}\:{aqeous}\:{solution}\:{of}\:{tetraoxosulphate}\left({IV}\right)\:{has}\:{a}\:{density}\: \\ $$$${of}\:\mathrm{1}.\mathrm{80}\:{g}/{cm}^{\mathrm{3}} \:{and}\:\mathrm{98\%}\:{purity}\:{level}.\:{what}\:{volume}\:{of}\:{this}\: \\ $$$${solution}\:{must}\:{be}\:{diluted}\:{to}\:{give}\:\mathrm{250}\:{cm}^{\mathrm{3}} \:{of}\:\mathrm{0}.\mathrm{500}\:{mol}/{dm}^{\mathrm{3}} \\ $$$${H}_{\mathrm{2}} {SO}_{\mathrm{4}} \:{solution}\:? \\ $$$$ \\ $$ Answered…
Question Number 137645 by mey3nipaba last updated on 05/Apr/21 $${The}\:{sum}\:{of}\:{the}\:{squares}\:{of}\:{two}\:{consecutive} \\ $$$${odd}\:{numbers}\:{is}\:\mathrm{130}.\:{Find}\:{the}\:{larger}\:{number}. \\ $$ Answered by bemath last updated on 05/Apr/21 $${x}^{\mathrm{2}} +\left({x}+\mathrm{2}\right)^{\mathrm{2}} =\mathrm{130} \\…