Category: Geometry

Question Number 157739 by gsk2684 last updated on 27/Oct/21 $$twoparallelpaths26mapartrun$$$$east-westthroughthewoods.$$$$onepersoneastononepathat$$$$3kmphandanotherwestonother$$$$pathat4kmph.iftheypasseach$$$$otherattimet=0,$$$$i)howfarapartarethey$$$$\mathrm{8}\:{sec}\:{later}?\: \…

Question Number 26644 by tawa tawa last updated on 27/Dec/17 Answered by Rasheed.Sindhi last updated on 27/Dec/17 $$\mathrm{Let}\mathrm{the}\mathrm{side}\mathrm{of}\mathrm{square}=\mathrm{x}$$$$\mathrm{The}\mathrm{diagonal}=\sqrt{{\mathrm{x}}^2+{\mathrm{x}}^2}=28\sqrt{2}$$$$\sqrt{\mathrm{2}}\:\:\mathrm{x}=\mathrm{28}\sqrt{\mathrm{2}} \…

Question Number 26389 by ajfour last updated on 24/Dec/17 Commented by ajfour last updated on 24/Dec/17 $$r+\frac{1}{r^2}=c;or\cos \theta +\sec {}^2\theta =c$$$$\Rightarrow ifx=\frac{1}{r}then{x}^2+\frac{1}{x}=c$$$${or}\:\:\:{x}^{\mathrm{3}} −{cx}+\mathrm{1}=\mathrm{0}…

Question Number 157225 by mr W last updated on 21/Oct/21 Commented by mr W last updated on 21/Oct/21 $$SolutiontoQ157114$$$$$$$${AD}=\sqrt{\mathrm{15}^{\mathrm{2}} −\left(\mathrm{3}{x}\right)^{\mathrm{2}} }…

Question Number 157054 by andradamaryjane last updated on 19/Oct/21 $$supposeyoudropatennisballfromahieghtof15feet.aftertheballhitstheflooritreboundsto85\mathrm{\%}ofitspreviousheight.howhighwilltheballreboundafteritsghirdbounceroundtlthenearesttenth$$$$$$ Commented by mr W last updated on 19/Oct/21 $$supposeyou{don}^{\prime }twritealltextina$$$${single}\:{line},\:{maybe}\:{more}\:{people}\:{may}…