Question Number 18450 by aalieff last updated on 21/Jul/17 $${A}\:\$\mathrm{4000}\:{note}\:{is}\:{signed},\:{for}\:\mathrm{30}\:{days} \\ $$$${at}\:{a}\:{discount}\:{rate}\:{of}\:\mathrm{12\%}.\:{Find}\:{the} \\ $$$${proceeds}. \\ $$$$ \\ $$$${I}'{m}\:{not}\:{sure}\:{whether}\:{the}\:\$\mathrm{4000}\:{is} \\ $$$${bank}\:{discount},\:{principal}\:{or}\:{maturity}\:{value}. \\ $$$$ \\ $$$${Please}\:{help}\:{me} \\…
Question Number 18439 by mondodotto@gmail.com last updated on 21/Jul/17 Commented by Tinkutara last updated on 21/Jul/17 $$\frac{\mathrm{47}}{\mathrm{60}} \\ $$ Commented by mondodotto@gmail.com last updated on…
Question Number 18431 by aplus last updated on 21/Jul/17 $$\mathrm{x}^{\mathrm{2}} =\mathrm{16}^{\mathrm{x}} \\ $$$$\mathrm{find}\:\mathrm{x} \\ $$ Answered by mrW1 last updated on 21/Jul/17 $$\mathrm{x}=−\frac{\mathrm{2}}{\mathrm{ln}\:\mathrm{16}}×\mathrm{W}\left(\pm\frac{\mathrm{ln}\:\mathrm{16}}{\mathrm{2}}\right) \\ $$$$\mathrm{since}\:−\frac{\mathrm{ln}\:\mathrm{16}}{\mathrm{2}}<−\frac{\mathrm{1}}{\mathrm{e}}…
Question Number 18430 by aplus last updated on 21/Jul/17 $$\mathrm{x}^{\mathrm{2}} =\mathrm{3}^{\mathrm{x}} \\ $$$$\mathrm{find}\:\mathrm{x} \\ $$ Answered by mrW1 last updated on 21/Jul/17 $$\mathrm{x}=\pm\mathrm{3}^{\frac{\mathrm{x}}{\mathrm{2}}} \\ $$$$\mathrm{x}=\pm\mathrm{e}^{\frac{\mathrm{x}}{\mathrm{2}}\mathrm{ln}\:\mathrm{3}}…
Question Number 149485 by abdurehime last updated on 05/Aug/21 $$\mathrm{proof}\:\mathrm{that}\:\mathrm{1}=\mathrm{2}?? \\ $$ Answered by Olaf_Thorendsen last updated on 05/Aug/21 $$\mathrm{if}\:\mathrm{A}\:=\:\mathrm{B} \\ $$$$\mathrm{A}×\mathrm{A}\:=\:\mathrm{A}×\mathrm{B} \\ $$$$\mathrm{A}^{\mathrm{2}} \:=\:\mathrm{AB}\:=\:\mathrm{BA}…
Question Number 18400 by virus last updated on 20/Jul/17 Commented by virus last updated on 21/Jul/17 $${please}\:{solve}\:{this} \\ $$ Terms of Service Privacy Policy Contact:…
Question Number 83935 by Roland Mbunwe last updated on 08/Mar/20 $${If}\:\:\boldsymbol{{x}}^{\mathrm{4}} \:{and}\:{higher}\:{powers}\:{of}\:{x}\:{are}\:{neglected},\:{show}\:{that} \\ $$$$\sqrt{\left(\frac{\mathrm{1}−{x}}{\mathrm{1}+{x}+{x}^{\mathrm{2}} }\right)=\mathrm{1}−{x}+\frac{\mathrm{1}}{\mathrm{2}}{x}^{\mathrm{3}} } \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 18397 by geovane10math last updated on 20/Jul/17 $${Prove}\::\:\forall{n}\:\in\:\mathbb{N},\:{n}\:\geqslant\:\mathrm{2},\:{so}\:\exists\:{x},{y},{z}\:\mid\: \\ $$$${x},{y},{z}\:\in\:\mathbb{N}\:{such}\:{that}\: \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\frac{\mathrm{4}}{{n}}\:=\:\frac{\mathrm{1}}{{x}}\:+\:\frac{\mathrm{1}}{{y}}\:+\:\frac{\mathrm{1}}{{z}} \\ $$$${Example}: \\ $$$${choose}\:{n}\:=\:\mathrm{2} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\frac{\mathrm{4}}{\mathrm{2}}\:=\:\frac{\mathrm{1}}{{x}}\:+\:\frac{\mathrm{1}}{{y}}\:+\:\frac{\mathrm{1}}{{z}} \\ $$$${If}\:{x}\:=\:\mathrm{1}\:\:,\:\:\:{y}\:=\:\mathrm{2}\:\:{and}\:\:\:{z}\:=\:\mathrm{2},\:{the}\:{equa}- \\ $$$${tion}\:{is}\:{correct}! \\…
Question Number 18379 by virus last updated on 19/Jul/17 Answered by mrW1 last updated on 19/Jul/17 $$\mathrm{T}=\mathrm{tension}\:\mathrm{in}\:\mathrm{rope} \\ $$$$\mathrm{4T}=\mathrm{m}_{\mathrm{A}} \mathrm{a}_{\mathrm{A}} \:\:\:…\left(\mathrm{i}\right) \\ $$$$\mathrm{F}−\mathrm{5T}=\mathrm{m}_{\mathrm{B}} \mathrm{a}_{\mathrm{B}} \:\:\:…\left(\mathrm{ii}\right)…
Question Number 18364 by 314159 last updated on 19/Jul/17 Terms of Service Privacy Policy Contact: info@tinkutara.com