Permutation and Combination – Page 38

Question-98030

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Question Number 98030 by bemath last updated on 11/Jun/20 Commented by bobhans last updated on 11/Jun/20 $(a) P (head and 4) = \frac{1}{8}$ $(b) P (head or 4) = \frac{5}{8}$ Terms of Service Privacy…

One-card-is-randomly-selected-from-a-pack-of-52-playing-cards-Determine-the-probability-that-is-a-picture-card-

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Question Number 98027 by bemath last updated on 11/Jun/20 $One card is randomly selected$ $from a pack of 52 playing cards .$ $Determine the probability that$ $is a picture card .$ Commented by bobhans last updated on 11/Jun/20…

p-n-find-A-n-p-A-n-1-p-

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Question Number 163443 by henderson last updated on 07/Jan/22 $p ⩽ n$ $find \frac{A_{n}^{p}}{A_{n - 1}^{p}} .$ Commented by mr W last updated on…

Find-the-non-negative-integer-solutions-of-2x-3y-5z-60-

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Question Number 163313 by SLVR last updated on 06/Jan/22 $F i n d t h e n o n n e g a t i v e i n t e g e r$ $s o l u t i o n s o f 2 x + 3 y + 5 z = 60$ Answered by mr W last updated on 06/Jan/22 $l e t 2 x + 3 y = 5 u$ $$\mathrm{5}{u}+\mathrm{5}{z}=\mathrm{60}…

hi-We-store-5-objects-in-three-discernible-drawers-Suppose-that-the-different-ways-of-carrying-out-these-arrangements-are-equally-probable-calculate-the-probability-that-one-of-the-3-drawers-conta

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Question Number 163283 by greg_ed last updated on 05/Jan/22 $hi!$ We store 5 objects in three discernible drawers. Suppose that the different ways of…

Question-163263

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Question Number 163263 by Ar Brandon last updated on 05/Jan/22 Answered by qaz last updated on 05/Jan/22 $$\underset{\mathrm{k}=\mathrm{1}} {\overset{\mathrm{n}} {\sum}}\left(−\mathrm{1}\right)^{\mathrm{k}} \mathrm{k} $(\begin{matrix} n \\ k \end{matrix})$ =\frac{\partial}{\partial\mathrm{x}}\mid_{\mathrm{x}=\mathrm{1}} \left(\underset{\mathrm{k}=\mathrm{0}} {\overset{\mathrm{n}} {\sum}} $(\begin{matrix} n \\ k \end{matrix})$ \left(−\mathrm{x}\right)^{\mathrm{k}} −\mathrm{1}\right)=\frac{\partial}{\partial\mathrm{x}}\mid_{\mathrm{x}=\mathrm{1}}…

Find-the-number-of-ways-of-selecting-9-balls-from-6-red-balls-5-white-balls-and-5-blue-balls-if-each-selection-consists-of-3-balls-of-each-colour-

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Question Number 32093 by NECx last updated on 19/Mar/18 $F i n d t h e n u m b e r o f w a y s o f$ $s e l e c t i n g 9 b a l l s f r o m 6 r e d b a l l s,$ $5 w h i t e b a l l s a n d 5 b l u e b a l l s i f$ $e a c h s e l e c t i o n c o n s i s t s o f 3 b a l l s$ $o f e a c h c o l o u r .$ Answered by Joel578 last updated…

Question-97600

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Question Number 97600 by Power last updated on 08/Jun/20 Answered by mahdi last updated on 08/Jun/20 $19 trangles$ $3, 4, 5 & 3, 4, 6 & 4, 5, 6 & 3, 5, 6$ $3, 3, 4 & 3, 3, 5 & 4, 4, 3 & 4, 4, 5 & 4, 4, 6$ $5, 5, 3 & 5, 5, 4 & 5, 5, 6 & 6, 6, 3 & 6, 6, 4 & 6, 6, 5$ $$\mathrm{3},\mathrm{3},\mathrm{3}\:\&\:\mathrm{4},\mathrm{4},\mathrm{4}\:\&\:\mathrm{5},\mathrm{5},\mathrm{5}\:\&\:\mathrm{6},\mathrm{6},\mathrm{6}…

Question-97492

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Question Number 97492 by 675480065 last updated on 08/Jun/20 Answered by smridha last updated on 08/Jun/20 $l e t l n (x) = - k s o w e g e t$ $\int_{0}^{\infty} e^{- 2021 k} k^{2020} d k$ $$=\frac{\boldsymbol{\Gamma}\left(\mathrm{2021}\right)}{\left(\mathrm{2021}\right)^{\mathrm{2021}}…

Prove-that-1-n-2-k-n-2-k-n-2-k-2-n-2-2n-1-n-1-

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Question Number 31714 by gunawan last updated on 13/Mar/18 $Prove that$ $\underset{1}{\sum^{n - 2}} k (\begin{matrix} n - 2 \\ k \end{matrix}) (\begin{matrix} n + 2 \\ k + 2 \end{matrix}) = (n - 2) (\begin{matrix} 2 n - 1 \\ n - 1 \end{matrix})$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Category: Permutation and Combination