Question Number 39058 by jasno91 last updated on 02/Jul/18 Commented by maxmathsup by imad last updated on 25/Jul/18 $${if}\:{you}\:{want}\:{developpement}\:{let} \\ $$$${A}\left({x}\right)=\left(\mathrm{5}{x}−\mathrm{3}\right)\left({x}+\mathrm{4}\right)−\left(\mathrm{2}{x}+\mathrm{5}\right)\left(\mathrm{3}{x}−\mathrm{4}\right) \\ $$$${A}\left({x}\right)=\mathrm{5}{x}^{\mathrm{2}} \:+\mathrm{20}{x}\:−\mathrm{3}{x}\:−\mathrm{12}\:−\left(\mathrm{6}{x}^{\mathrm{2}} \:−\mathrm{8}{x}\:+\mathrm{15}{x}\:−\mathrm{20}\right)…
Question Number 104571 by ajfour last updated on 22/Jul/20 $$\frac{\mathrm{1}}{\mathrm{8}}\:\boldsymbol{\div}\:\frac{\mathrm{1}}{\mathrm{8}}\:\boldsymbol{\div}\:\frac{\mathrm{1}}{\mathrm{8}}\:\boldsymbol{\div}\:\frac{\mathrm{1}}{\mathrm{8}}\:=\:? \\ $$ Answered by OlafThorendsen last updated on 22/Jul/20 $$=\:\left(\frac{\mathrm{1}}{\mathrm{8}}\:\boldsymbol{\div}\:\frac{\mathrm{1}}{\mathrm{8}}\right)\:\boldsymbol{\div}\left(\:\frac{\mathrm{1}}{\mathrm{8}}\:\boldsymbol{\div}\:\frac{\mathrm{1}}{\mathrm{8}}\right) \\ $$$$=\:\left(\mathrm{1}\right)\:\boldsymbol{\div}\left(\:\mathrm{1}\right) \\ $$$$=\:\mathrm{1} \\…
Question Number 104497 by PengagumRahasiamu last updated on 21/Jul/20 Commented by mr W last updated on 22/Jul/20 $${Q}\mathrm{2}: \\ $$$${a}\leqslant\mathrm{2}\:\:? \\ $$ Commented by PengagumRahasiamu…
Question Number 104475 by pete last updated on 21/Jul/20 $$\mathrm{Solve}\:\mathrm{2}^{\mathrm{2x}} \:+\:\mathrm{42}^{\mathrm{x}} −\mathrm{32}=\mathrm{0} \\ $$ Answered by $@y@m last updated on 21/Jul/20 $${I}\:{think}\:{there}\:{is}\:{a}\:{typo}\:{in}\:{question}. \\ $$$${It}\:{should}\:{be}: \\…
Question Number 104428 by bemath last updated on 21/Jul/20 $${given}\:{a}_{{n}+\mathrm{1}} ={a}_{{n}−\mathrm{1}} +\mathrm{2}{a}_{{n}} \\ $$$${if}\:{a}_{\mathrm{3}} =\:\mathrm{0}\:\&\:{a}_{\mathrm{5}} \:=\:−\mathrm{1} \\ $$$${find}\:{a}_{{n}} \\ $$ Answered by Dwaipayan Shikari last…
Question Number 38731 by Rio Mike last updated on 28/Jun/18 Commented by Rio Mike last updated on 28/Jun/18 $${from}\:{the}\:{venn}\:{diagram}\:{above} \\ $$$${it}\:{is}\:{given}\:{that}\:{n}\left({E}\right)=\:\mathrm{10}\:{and}\: \\ $$$${n}\left({A}\right)=\mathrm{5} \\ $$$${Find}…
Question Number 104239 by Jamshidbek2311 last updated on 20/Jul/20 $$\left\{\mathrm{3}\left\{\mathrm{2}{x}\right\}\right\}={x}\:\:\:{x}=? \\ $$ Commented by mr W last updated on 20/Jul/20 $${x}=\mathrm{0} \\ $$ Terms of…
Question Number 104221 by bemath last updated on 20/Jul/20 $${The}\:{diagonals}\:{of}\:{a} \\ $$$${trapezoid}\:{ABCD}\:{intersect} \\ $$$${at}\:{point}\:{Q}\:{lies}\:{between}\:{the} \\ $$$${parallel}\:{line}\:{BC}\:{and}\:{AD} \\ $$$${such}\:{that}\:\angle{AQD}\:=\:\angle{CQB}\:, \\ $$$${line}\:{CD}\:{separates}\:{points}\:{P} \\ $$$${and}\:{Q}\:.\:{Prove}\:{that} \\ $$$$\angle{BQP}\:=\:\angle{DAQ}\: \\…
Question Number 38492 by Cheyboy last updated on 26/Jun/18 Commented by Cheyboy last updated on 26/Jun/18 $${plzz}\:{help}\:{me}\:{both}\:{questions}\:{or}\:{any} \\ $$$${of}\:{them} \\ $$ Terms of Service Privacy…
Question Number 169538 by BRR last updated on 02/May/22 Commented by Tinku Tara last updated on 02/May/22 $$\mathrm{fare}\:\mathrm{increase}\:\mathrm{5}{x} \\ $$$$\mathrm{total}\:\mathrm{earning}\:=\left(\mathrm{400}−\mathrm{10}{x}\right)×\left(\mathrm{50}+\mathrm{5}{x}\right) \\ $$$${f}\left({x}\right)=\mathrm{20000}+\mathrm{1500}{x}−\mathrm{50}{x}^{\mathrm{2}} \\ $$$${f}\:'\left({x}\right)=\mathrm{1500}−\mathrm{100}{x} \\…