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Alekssandra [29.7K]
4 years ago
15

In a casino, the chance of winning a certain game is 14.5%. If you play the game 20 times, what’s your best estimate for the num

ber of times you would win? Round off your answer to the nearest whole number.
Mathematics
1 answer:
EleoNora [17]4 years ago
7 0
Expected number of wins=number of plays times the probability of winning

w=20(14.5/100)

w=20(0.145)

w=2.9

w≈3 

So you would expect to win 3 times out of 20 attempts (rounded to the nearest whole number of wins)
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The area of a square field is 841m.A rectangular field whose length is twice it's breath has its perimeter equal to square field
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<h2>Answer with explanation:</h2>

Given: The area of a square field is 841 sq.m

Since side of square = √Area

So, side of square field = \sqrt{841} =29

Thus , side of square field = 29 m

Perimeter of square = 4( side) = 4(29) = 116 m

Let x be the breadth of rectangle then 2x be the length

Perimeter of rectangle = 2 (length+breadth) = 2(2x+x)= 2(3x)=6x

As per question, perimeter of rectangle=  Perimeter of square

\Rightarrow\ 6x=116\\\\\Rightarrow\ x=\dfrac{116}{6}=\dfrac{58}{3}\ m

Length : 2x =2\dfrac{58}{3}=\dfrac{116}{3}\ m

Area of rectangle =  length x breadth

=\dfrac{116}{3}\times\dfrac{58}{3}=\dfrac{6728}{9}\\\\=747\dfrac{5}{9}\ m^2

Area of rectangle = 747\dfrac{5}{9}\ m^2

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i have 3 1/8 pounds of macaroni and want to make 10 equal serving of macaroni salad. how many pounds of macaroni do i have for e
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=\dfrac{(1+ \cos A)(1 - \cos A)}{\cos A(1 - \cos A)}\\\\\\=\dfrac{1+ \cos A}{ \cos A}\\\\\\=\dfrac{1}{\cos A} + \dfrac{\cos A}{ \cos A}\\\\\\=\sec A + 1 \\\\\\=1+ \sec A\\\\\\=\text{R.H.S}\\\\\text{Proved.}

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