Question Number 74411 by peter frank last updated on 24/Nov/19 $${A}\:{rocket}\:{vertically}\:{from} \\ $$$${the}\:{surface}\:{of}\:{the}\:{earth} \\ $$$${with}\:{an}\:{initil}\:{velocity}\left({v}_{{o}} \right) \\ $$$${show}\:{that}\:{its}\:{velocity}\:{v} \\ $$$${at}\:{height}\:{h}\:{is}\:{given}\:{by} \\ $$$${v}_{{o}} ^{\mathrm{2}} −{v}^{\mathrm{2}} =\frac{\mathrm{2}{gh}}{\mathrm{1}+\frac{{h}}{{R}}}…
Question Number 8873 by j.masanja06@gmail.com last updated on 03/Nov/16 $$\mathrm{simplify}\:\mathrm{5y}^{\mathrm{2}} \:×\:\mathrm{6x}^{\mathrm{4}} \\ $$ Answered by FilupSmith last updated on 03/Nov/16 $$\mathrm{5}{y}^{\mathrm{2}} ×\mathrm{6}{x}^{\mathrm{4}} =\mathrm{30}{y}^{\mathrm{2}} {x}^{\mathrm{4}} \\…
Question Number 139941 by metamorfose last updated on 02/May/21 $${find}\:{prime}\:{numbers}\:{p}\:,\:{q}\:{so}\:{that}: \\ $$$$\mathrm{2}^{{p}} ={q}^{{q}} +{q}+\mathrm{2} \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 139940 by mathdanisur last updated on 02/May/21 $${There}\:{are}\:\mathrm{4}\:{children}\:{in}\:{the}\:{team}. \\ $$$${Find}\:{the}\:{probability}\:{that}\:{three}\:{are} \\ $$$${girls}\:{and}\:{one}\:{is}\:{a}\:{boy}. \\ $$ Answered by mr W last updated on 02/May/21 $${children}\:{are}\:{different}:…
Question Number 8870 by FilupSmith last updated on 03/Nov/16 $$\mathrm{You}\:\mathrm{have}\:{n}\:\mathrm{dice}.\:\mathrm{Each}\:\mathrm{dice}\:\mathrm{has}\:{p}\:\mathrm{sides}, \\ $$$$\mathrm{labled}\:\mathrm{1}\:\mathrm{to}\:{p}.\:\mathrm{What}\:\mathrm{is}\:\mathrm{the}\:\mathrm{probability} \\ $$$$\mathrm{of}\:\mathrm{rolling}\:{k}\:\:\:\:\:\left(\mathrm{1}\leqslant{k}\leqslant{p}\right) \\ $$ Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 139943 by mathsuji last updated on 02/May/21 $${The}\:{train}\:{is}\:{moving}\:{at}\:{a}\:{speed}\:{of}\:\mathrm{12}\:{m}/{san}. \\ $$$${In}\:{this}\:{cose},\:{it}\:{seems}\:{to}\:{the}\:{passenger} \\ $$$${in}\:{the}\:{car}\:{that}\:{the}\:{direction}\:{of}\:{the} \\ $$$${raindrops}\:{is}\:{at}\:{an}\:{angle}\:{of}\:\mathrm{30}\:{degrees} \\ $$$${to}\:{the}\:{vertical}.\:{Find}\:{the}\:\:{average} \\ $$$${speed}\:{of}\:{raindrops}. \\ $$ Terms of Service…
Question Number 8868 by tawakalitu last updated on 03/Nov/16 Terms of Service Privacy Policy Contact: info@tinkutara.com
Question Number 139936 by Snail last updated on 02/May/21 $${Find}\:{all}\:{integers}\:{x}\:{and}\:{y}\:{i}.{e}\:{x}^{\mathrm{2}} +{y}^{\mathrm{2}} =\mathrm{9999}\left({x}−{y}\right) \\ $$ Answered by Rasheed.Sindhi last updated on 04/May/21 $$\left({x}+{y}\right)^{\mathrm{2}} =\mathrm{9999}\left({x}−{y}\right)+\mathrm{2}{xy} \\ $$$$\left({x}−{y}\right)^{\mathrm{2}}…
Question Number 8865 by 7C;00 last updated on 03/Nov/16 $$\frac{\mathrm{1}^{\mathrm{2}} }{\mathrm{1}×\mathrm{3}}+\frac{\mathrm{2}^{\mathrm{2}} }{\mathrm{3}×\mathrm{5}}+…+\frac{{n}\mathrm{2}}{\left(\mathrm{2}{n}−\mathrm{1}\right)\left(\mathrm{2}{n}+\mathrm{1}\right)}=\frac{{n}\left({n}+\mathrm{1}\right.}{\mathrm{2}\left(\mathrm{2}{n}+\mathrm{1}\right)} \\ $$ Answered by nume1114 last updated on 04/Nov/16 $$\frac{\mathrm{1}^{\mathrm{2}} }{\mathrm{1}×\mathrm{3}}+\frac{\mathrm{2}^{\mathrm{2}} }{\mathrm{3}×\mathrm{5}}+…+\frac{{n}^{\mathrm{2}} }{\left(\mathrm{2}{n}−\mathrm{1}\right)\left(\mathrm{2}{n}+\mathrm{1}\right)}…
Question Number 139932 by Ar Brandon last updated on 02/May/21 $$\mathrm{F}\left(\mathrm{x}\right)=\frac{\mathrm{1}}{\mathrm{h}^{\mathrm{2}} }\int_{\mathrm{0}} ^{\mathrm{h}} \mathrm{d}\xi\int_{\mathrm{0}} ^{\mathrm{h}} \mathrm{f}\left(\mathrm{x}+\xi+\eta\right)\mathrm{d}\eta \\ $$$$\mathrm{Calculate}\:\mathrm{F}''\left(\mathrm{x}\right) \\ $$ Terms of Service Privacy Policy…