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Question Number 174754 Answers: 0 Comments: 0

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Question Number 174742 Answers: 0 Comments: 0

≪_• ^• I THINK...^ ^(−) _•^• _(−) ≫ One question per post, IDEAL 👍👍👍 Two questions per post,OK (BEARABLE) (👎+👍)/2 Three or more questions:NO, NO, NO! 👎👎👎

$≪_{∙}^{∙} \underline{\overset{―}{I THINK . . .^{}}}_{∙}^{∙} ≫$ $One question per post, IDEAL$ 👍👍👍 $Two questions per post, OK (BEARABLE)$ (👎+👍)/2 $Three or more questions : NO, NO, NO!$ 👎👎👎

Question Number 174737 Answers: 1 Comments: 0

A graduating student keeps applying for a job until she gets an offer. The probability of getting an offer at any trial is 0.35. What is the expected number of applications?

$A graduating student keeps applying$ $for a job until she gets an offer . The$ $probability of getting an offer at any$ $trial is 0.35 . What is the expected$ $number of applications ?$

Question Number 174735 Answers: 0 Comments: 0

Question Number 174732 Answers: 1 Comments: 0

Question Number 174728 Answers: 1 Comments: 3

Question Number 174727 Answers: 1 Comments: 0

∫_0 ^∞ (e^(−x^2 ) /((x^2 +a^2 )^2 ))dx

$\int_{0}^{\infty} \frac{e^{- x^{2}}}{{(x^{2} + a^{2})}^{2}} d x$

Question Number 174719 Answers: 1 Comments: 0

Question Number 174715 Answers: 2 Comments: 0

lim_(x→∞) cos((π/4))cos((π/8)) ... cos((π/2^(n+1) ))

$\underset{x \to \infty}{\lim c o s} (\frac{π}{4}) \cos (\frac{π}{8}) . . . \cos (\frac{π}{2^{n + 1}})$

Question Number 174709 Answers: 1 Comments: 3

Question Number 174708 Answers: 1 Comments: 1

Question Number 174696 Answers: 3 Comments: 0

prove that : 𝛀 = ∫_0 ^( ∞) ( (( x)/( sinh (x))) )^( 3) dx =(𝛑^( 2) /(16)) (12− 𝛑^( 2) ) written and prepared by : m.n

$p r o v e t h a t :$ $Ω = \int_{0}^{\infty} {(\frac{x}{s i n h (x)})}^{3} d x = \frac{π^{2}}{16} (12 - π^{2})$ $w r i t t e n a n d p r e p a r e d b y : m . n$

Question Number 174689 Answers: 0 Comments: 3

Question Number 174685 Answers: 1 Comments: 0

prove that : Ω = ∫_0 ^( ∞) (( x^( 2) )/(cosh(x ))) dx = (π^( 3) /( 8))

$p r o v e t h a t :$ $Ω = \int_{0}^{\infty} \frac{x^{2}}{c o s h (x)} d x = \frac{π^{3}}{8}$

Question Number 174683 Answers: 2 Comments: 0

lim_(x→0) [(x^2 /(sinx tanx ))] [∙] greatest integer function

$\lim_{x \to 0} [\frac{x^{2}}{\sin x \tan x}]$ $[\cdot] g r e a t e s t i n t e g e r f u n c t i o n$

Question Number 174684 Answers: 1 Comments: 0

Q: I , J are two ideals of commutative ring , ( R ,⊕, ) .prove that : (√( I ∩ J )) =^? (√( I )) ∩ (√( J )) m.n note : (√(I )) = { x ∈ R ∣ ∃ n∈ N , x^( n) ∈ I }

$Q : I, J a r e t w o i d e a l s o f c o m m u t a t i v e$ $r i n g, (R, \oplus,) . p r o v e t h a t :$ $\sqrt{I \cap J} \overset{?}{=} \sqrt{I} \cap \sqrt{J} m . n$ $n o t e : \sqrt{I} = {x \in R ∣ \exists n \in N, x^{n} \in I}$

Question Number 174681 Answers: 0 Comments: 0

In a game of lotto, balls are numbered 1 through to 90. They are placed in a barrel and five balls are drawn out without replacement. The balls are of the same size and are equally like to be drawn. The first five balls drawn out are 28 - 06 - 27 - 54 - 86. What is the probability that the next ball drawn out will be number 18?

Question Number 174677 Answers: 0 Comments: 1