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padilas [110]
3 years ago
10

In the game of​ roulette, a player can place a ​$7 bet on the number 5 and have a 1/38 probability of winning. If the metal ball

lands on ​, the player gets to keep the ​$7 paid to play the game and the player is awarded an additional ​$245. ​ Otherwise, the player is awarded nothing and the casino takes the​ player's ​$7. What is the expected value of the game to the​ player? If you played the game 1000​ times, how much would you expect to​ lose? Question content area bottom Part 1 The expected value is ​$ -0.37. the player would expect to lose about ​$
Mathematics
1 answer:
adell [148]3 years ago
7 0

Answer:

973.68 times

Step-by-step explanation:

Since you would expect to win 1 in 38, the amount of times you will win in 1000 times is 1000 / 38 which is 26.32. therefore you would expect to lose 1000 - 26.32 times which is 973.68

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Need help plz help me out thanks!
Elden [556K]

Answer:

I hope this helps!

Step-by-step explanation:

3y(5x+3)=15yx+9y

2y(2x+3)=4yx+6y

4y(x+2)=4yx+8y

3y(7x+2)=21yx+6y

6 0
3 years ago
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ohaa [14]

Answer:

Step-by-step explanation:

\tan x=\frac{8}{15}\\x=\tan^{-1} \left(\frac{8}{15} \right) \approx \boxed{28.07^{\circ}}

7 0
2 years ago
What is 2.95 expressed as a fraction?<br><br><br> 59/20<br><br> 336/40<br><br> 40/118<br><br> 118/80
Verdich [7]
We rewrite the expression:
 2.95 = 2 + 0.95
 2.95 = 2 + 95/100
 Adding fractions we have:
 2 + 95/100 = (200 + 95) / (100)
 2 + 95/100 = (295) / (100)
 Rewriting the fraction:
 (295) / (100) = 59/20
 Answer:
 
2.95 expressed as a fraction is:
 
59/20
6 0
3 years ago
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5 0
4 years ago
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gtnhenbr [62]

Answer:

17) 250 km²

18) never

19) sometimes

20) 288 in³

Step-by-step explanation:

17)

this polygon can be seen as the combination of two shapes : a 16×13 rectangle on top, and a right-angled triangle at the bottom.

this triangle has the side lengths

15 km

(16 - 10) = 6 km

(27 - 13) = 14 km

the total area is the area of the rectangle plus the area of the triangle.

the area of the rectangle (length×width)

Ar = 16×13 = 208 km²

the area of the triangle (baseline×height/2)

since it is a right-angled triangle, we use one side of the 90 degree angle as baseline and the other as height

At = 6×14/2 = 3×14 = 42 km²

so the total area of the polygon

Ap = Ar + At = 208 + 42 = 250 km²

18) the first quadrant is the area between the right (positive) side of the x axis and the upper (positive) part of the y axis. all points here have always and only positive x and y values. never any negative ones.

19) when a point is on the x-axis, well, left of point 0 on the x -axis are only negative values of x. and right of point 0 of the x-axis are only positive values of x. so, for some of these points the x value is positive, and for some it is negative. therefore "sometimes".

20) the volume of a box is length×width×height.

V = 8×3×12 = 24×12 = 288 in³

8 0
3 years ago
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