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Question-223896

Question Number 223896 by MASANJAJJ last updated on 08/Aug/25 Commented by mr W last updated on 08/Aug/25 $${y}=\mathrm{81}° \\ $$$${x}\:{can}\:{not}\:{be}\:{determined},\:{because}\:{it} \\ $$$${is}\:{not}\:{clear}\:{what}\:{you}\:{mean}\:{with}\:{the} \\ $$$${angle}\:\angle{AOB}.\:{do}\:{you}\:{mean}\: \\…

Which-of-the-following-complex-numbers-is-equivalent-to-3-5i-8-2i-Note-i-1-A-3-8-5i-2-B-3-8-5i-2-C-7-34-23i-34-D-7-34-23i-34-

Question Number 223255 by profrey last updated on 19/Jul/25 $${Which}\:{of}\:{the}\:{following}\:{complex} \\ $$$${numbers}\:{is}\:{equivalent}\:{to}\:\frac{\mathrm{3}−\mathrm{5}{i}}{\mathrm{8}+\mathrm{2}{i}}?\left({Note}:\:{i}=\sqrt{\left.−\mathrm{1}\right)}\right. \\ $$$$\left.{A}\right)\frac{\mathrm{3}}{\mathrm{8}}−\frac{\mathrm{5}{i}}{\mathrm{2}} \\ $$$$ \\ $$$$\left.{B}\right)\frac{\mathrm{3}}{\mathrm{8}}+\frac{\mathrm{5}{i}}{\mathrm{2}} \\ $$$$\: \\ $$$$\left.{C}\right)\frac{\mathrm{7}}{\mathrm{34}}−\frac{\mathrm{23}{i}}{\mathrm{34}} \\ $$$$ \\…

Question-223101

Question Number 223101 by Jubr last updated on 14/Jul/25 Commented by Tawa11 last updated on 15/Jul/25 $$?\:\:=\:\:\frac{\mathrm{16}}{\mathrm{25}}\left(?\:\:+\:\:\mathrm{76}.\mathrm{5}\right) \\ $$$$\therefore\:\:\:\:?\:\:\:=\:\:\:\mathrm{136}\:\mathrm{cm}^{\mathrm{2}} \\ $$ Commented by mr W…

Question-222995

Question Number 222995 by Jubr last updated on 12/Jul/25 Answered by mr W last updated on 12/Jul/25 $${T}={tension}\:{string}\:{around}\:{the}\:{pulley} \\ $$$${A}={acceleration}\:{of}\:{block}\:{M} \\ $$$${a}={acceleration}\:{of}\:{block}\:{m} \\ $$$${assume}\:{there}\:{is}\:{no}\:{friction}. \\…