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bekas [8.4K]
3 years ago
6

A roulette wheel has the numbers 1 through 36, 0, and 00. A bet on five numbers pays 6 to 1 (that is, if one of the five numbers

you bet comes up, you get back your $1 plus another $6). How much do you expect to win with a $1 bet on five numbers? HINT [See Example 4.] (Round your answer to the nearest cent.)
Mathematics
1 answer:
tatiyna3 years ago
7 0

Answer:

5 cents

Step-by-step explanation:

So the roulette wheel would have a total of 38 numbers, which means 38 different possible cases. Since you are allowed to bet on 5 numbers, the chance to win this is 5 out of 38 and to lose this is 33 out of 38.

If you win, you get 1 + 6 = 7 dollar, and if you lose, you lose 1 dollar.

Therefore the expected amount out of this game is:

E = 7\frac{5}{38} - 1\frac{33}{38} = \frac{35}{38} - \frac{33}{38} = \frac{2}{38} = \frac{1}{19} = \$0.0526

or 5 cents

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The equation of a circle is given by (x + 3.5) ^ 2 + (y - 2.82) ^ 2 = 25 What is the area of a 52 degrees sector of this circle?
Sunny_sXe [5.5K]

Answer:

≈ 11.34 units²

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

(x + 3.5)² + (y - 2.82)² = 25 ← is in standard form

with r² = 25 ⇒ r = \sqrt{25} = 5

The area (A) of the sector is calculated as

A = area of circle × fraction of circle

   = πr² × \frac{52}{360}

   = π × 5² × \frac{52}{360}

   = π × 25 × \frac{52}{360}

   = \frac{25(52)\pi }{360}

   ≈ 11.34 units² ( to the nearest hundredth )

3 0
3 years ago
PLEASE HELP! I. NEED. HELP. ASAP
kotykmax [81]

Just do 30%x179,000 and that will be the answer the equation is V (for value) V=53,700t

8 0
3 years ago
A store purchased a digital camera and marked it up 100% from the original cost of $863.57. A week later, the store placed the d
uysha [10]

Step-by-step explanation:

863.57 ×40/100 = 345.428

................................................

6 0
3 years ago
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Pls help I really need this help I’ll try to give extra points
kicyunya [14]

Answer:

c

Step-by-step explanation:

I GOT THE POWER OF GOD AND ANIME ON MY SIDE

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2 years ago
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sineoko [7]

Answer:

it would be on the 6th tick

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