Question Number 97953 by I want to learn more last updated on 10/Jun/20 Commented by mr W last updated on 10/Jun/20 $${M}={T}×{h}=\mathrm{2}×\mathrm{2}=\mathrm{4}\:{KN} \\ $$$$\Delta{V}=\frac{{M}}{{l}}=\frac{\mathrm{4}}{\mathrm{4}}=\mathrm{1}\:{KN} \\…
Question Number 32396 by saru53424@gmail.com last updated on 24/Mar/18 $${roots} \\ $$$$\mathrm{2}{x}×\boldsymbol{{x}}+\boldsymbol{{x}}+\mathrm{3} \\ $$ Answered by $@ty@m last updated on 24/Mar/18 $$\mathrm{2}{x}^{\mathrm{2}} +{x}+\mathrm{3}=\mathrm{0} \\ $$$${a}=\mathrm{2}\:{b}=\mathrm{1}\:{c}=\mathrm{3}…
Question Number 163432 by Tawa11 last updated on 06/Jan/22 Answered by mr W last updated on 07/Jan/22 $$\left(\mathrm{5}\right) \\ $$$${W}_{{air}} ={V}\rho \\ $$$${W}_{{water}} ={V}\left(\rho−\rho_{{water}} \right)…
Question Number 163386 by LEKOUMA last updated on 06/Jan/22 $$\underset{{x}\rightarrow−\infty} {\mathrm{lim}}\sqrt[{\mathrm{3}}]{\mathrm{1}−{x}^{\mathrm{3}} }−\sqrt[{\mathrm{4}}]{{x}^{\mathrm{4}} −\mathrm{1}} \\ $$ Answered by cortano1 last updated on 06/Jan/22 $$\:{Let}\:−{x}\:=\:\frac{\mathrm{1}}{{Y}}\:;\:\begin{cases}{{Y}\rightarrow\mathrm{0}}\\{{x}=−\frac{\mathrm{1}}{{Y}}}\end{cases} \\ $$$$\:\underset{{Y}\rightarrow\mathrm{0}}…
Question Number 97833 by Rio Michael last updated on 10/Jun/20 $$\:\mathrm{Hello}\:\mathrm{members}\:\mathrm{of}\:\mathrm{maths}\:\mathrm{editor}\:\mathrm{i}\:\mathrm{want}\:\mathrm{to}\:\mathrm{say} \\ $$$$\mathrm{something}\:\mathrm{concerning}\:\mathrm{this}\:\mathrm{forum}.\:\mathrm{Well}\:\mathrm{it} \\ $$$$\mathrm{is}\:\mathrm{my}\:\mathrm{own}\:\mathrm{point}\:\mathrm{of}\:\mathrm{view}:\:\mathrm{This}\:\mathrm{forum}\:\mathrm{is}\:\mathrm{a}\:\mathrm{place}\:\mathrm{where} \\ $$$$\mathrm{people}\:\mathrm{from}\:\mathrm{all}\:\mathrm{over}\:\mathrm{the}\:\mathrm{world}\:\mathrm{come}\:\mathrm{to}\:\mathrm{interact}\:\mathrm{together}. \\ $$$$\mathrm{A}\:\mathrm{place}\:\mathrm{where}\:\mathrm{people}\:\mathrm{from}\:\mathrm{different}\:\mathrm{back}\:\mathrm{grounds}, \\ $$$$\mathrm{class}\:\mathrm{and}\:\mathrm{qualification}\:\mathrm{speak}\:\mathrm{a}\:\mathrm{common}\:\mathrm{language}\:−\: \\ $$$$\mathrm{mathematics}.\:\mathrm{I}\:\mathrm{in}\:\mathrm{particular}\:\mathrm{thank}\:\mathrm{Tinkutara}'\mathrm{s}\:\mathrm{team}\:\mathrm{for} \\ $$$$\mathrm{such}\:\mathrm{a}\:\mathrm{great}\:\mathrm{platform}.\:\mathrm{But}\:\mathrm{i}\:\mathrm{notice}\:\mathrm{some}\:\mathrm{people}\:\mathrm{literally}…
Question Number 97803 by pete last updated on 09/Jun/20 $$\mathrm{The}\:\mathrm{annual}\:\mathrm{salaries}\:\mathrm{of}\:\mathrm{employees}\:\mathrm{in}\:\mathrm{a}\:\mathrm{large} \\ $$$$\mathrm{company}\:\mathrm{are}\:\mathrm{approximately}\:\mathrm{normally}\: \\ $$$$\mathrm{disributed}\:\mathrm{with}\:\mathrm{a}\:\mathrm{mean}\:\mathrm{of}\:\$\mathrm{50},\mathrm{000}\:\mathrm{and}\:\mathrm{a}\:\mathrm{standard} \\ $$$$\mathrm{deviation}\:\mathrm{of}\:\$\mathrm{20},\mathrm{000}. \\ $$$$\mathrm{a}.\:\mathrm{what}\:\mathrm{percent}\:\mathrm{of}\:\mathrm{people}\:\mathrm{earn}\:\mathrm{less}\:\mathrm{than} \\ $$$$\$\mathrm{40},\mathrm{000}? \\ $$$$\mathrm{b}.\:\mathrm{what}\:\mathrm{percent}\:\mathrm{of}\:\mathrm{people}\:\mathrm{earn}\:\mathrm{between} \\ $$$$\$\mathrm{45},\mathrm{000}\:\mathrm{and}\:\$\mathrm{65},\mathrm{000}? \\…
Question Number 32220 by rahul 19 last updated on 21/Mar/18 $${Find}\:{the}\:{value}\:{of}\:{a}\:{for}\:{which}\:{the}\:{equation} \\ $$$$\mathrm{sin}\:^{\mathrm{4}} {x}+{a}\mathrm{sin}\:^{\mathrm{2}} {x}+\mathrm{1}=\mathrm{0}\:{will}\:{have}\:{a}\:{solution}. \\ $$ Commented by rahul 19 last updated on 21/Mar/18…
Question Number 32209 by Raja1 last updated on 21/Mar/18 $${a}\:{boy}\:{rides}\:{his}\:{bicycle}\:\mathrm{10}{km}\:{at}\:{an}\:{average}\:{speed}\:{of}\:\mathrm{12}\:{km}/{hr}. \\ $$$${and}\:{again}\:{travel}\:\mathrm{12}\:{km}\:{at}\:{an}\:{average}\:{speed}\:{of}\:\mathrm{10}\:{km}/{hr} \\ $$$${his}\:{average}\:{speed}\:{for}\:{dntire}\:{trip}\:{is}\:{approximately} \\ $$$$\left.{a}\right)\mathrm{10}.\mathrm{4}{km}/{hr} \\ $$$$\left.{b}\right)\mathrm{10}.\mathrm{8}{km}/{hr} \\ $$$$\left.{c}\right)\mathrm{12}.\mathrm{2}{km}/{hr} \\ $$$$\left.{d}\right)\mathrm{11}.\mathrm{2}{km}/{hr} \\ $$ Answered…
Question Number 163178 by Tawa11 last updated on 04/Jan/22 Answered by mr W last updated on 05/Jan/22 $${mass}\:{of}\:{the}\:{balls}={m} \\ $$$${force}\:{on}\:{ball}\:\mathrm{1}\:{at}\:{beginning}={f} \\ $$$${distance}\:{between}\:{the}\:{balls}\:{at}\:{beginning}={s}=\mathrm{1} \\ $$$${v}_{\mathrm{1},{i},{n}} ={velocity}\:{of}\:{ball}\:\mathrm{1}\:{before}\:{n}^{{th}}…
Question Number 97606 by hardylanes last updated on 08/Jun/20 $${given}\:{that}\:{the}\:{polynomial}\:{p}\left({x}\right)=\left(\mathrm{3}{x}+\mathrm{2}\right)\left({x}−\mathrm{1}\right){q}\left({x}\right)−\mathrm{2}{x}−\mathrm{4} \\ $$$${of}\:{degree}\:\mathrm{3}\:{is}\:{exactly}\:{divisible}\:{by}\:{x}−\mathrm{2}\:{and}\: \\ $$$${that}\:{p}\left(−\mathrm{1}\right)=−\mathrm{12}.\:{find}\:{q}\left({x}\right). \\ $$ Answered by mr W last updated on 08/Jun/20 $${g}\left({x}\right)={ax}+{b}…