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dusya [7]
2 years ago
6

A gambling book recommends the following "winnin strategy" for the game of roulette:

Mathematics
1 answer:
Zinaida [17]2 years ago
4 0

Answer:

0.854 (85.4%)

Step-by-step explanation:

Since each bet is independent from others , then for X=gambler’s winnings when she quits

P(X>0) = probability to win in the first bet + probability of losing in the first bet * probability of wining at least one of the 2 additional bets

= 18/38 + (1-18/38) * [18/38*(1-18/38)+(1-18/38)*18/38+18/38*18/38 ] =0.854 (85.4%)

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7 0
3 years ago
Read 2 more answers
2. The 7th term of an A.P is 27 and the 12th term is 47, what is the sequence?
Vera_Pavlovna [14]

Answer:

<h2>3 + 4(n - 1)</h2>

Step-by-step explanation:

let r be the common differenc of the sequence

Term 12 - Term 7 = (12 - 7)r

then

47 - 27 = 5r

then

20 = 5r

then

r = 4

term 7 = term 1 + (7 - 1)r

then

27 = term 1 + 6r = term 1 + 24

then

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term 1 + (n - 1)r = 3 + 4(n - 1)

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3 years ago
Which ordered pair is a solution to the inequality 3x - 4y &lt; 16 ?
fgiga [73]

Answer:

C.

Step-by-step explanation:

You are given 3x-4y<16 and we want to see which of the ordered pairs is a solution.

These ordered pairs are assumed to be in the form (x,y).

A. (0,-4) ?

3x-4y<16 with (x=0,y=-4)

3(0)-4(-4)<16

0+16<16

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B. (4,-1)?

3x-4y<16 with (x=4,y=-1)

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C. (-3,-3)?

3x-4y<16 with (x=-3,y=-3)

3(-3)-4(-3)<16

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D. (2,-3)?

3x-4y<16 with (x=2,y=-3)

3(2)-4(-3)<16

6+12<16

18<16 is false so (2,-3) is not a solution to the given inequality.

4 0
3 years ago
Rachel tells Jonah that she can turn a square, but he won’t be able to tell that it was turned after she is finished turning it.
Dmitry [639]
ANSWER: it’s a square. All sides will look the same after turning because all sides LOOK THE SAME lol.
5 0
2 years ago
Multiply: 5.13 × 4 ASAP correct answers only pls
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Answer: 20.52

Step-by-step explanation:

Your welcome

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