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dsp73
3 years ago
12

Please help there both on probability using a spinner which is the spinner in the photos

Mathematics
1 answer:
Levart [38]3 years ago
6 0
1. 3/8
2. No. E(3/8) B(1/8)
3. 1/2
4. Yes both has (1/8) probability
5. 1/4
6. 1/2
7. 1/2
8. 2/3
9. 5/6
10. 1/6
11. 2/3
12. 1/3
13. 1/2
14. No 3(1/6) 4(1/3)
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If triangles have the ratio of 2:3 adn the smaller traingle has a aside length of 7 what si length of the correspodning sides
REY [17]
2:3=7:x\\\\\dfrac{7}{x}=\dfrac{2}{3}\ \ \ \ |cross\ multiply\\\\2x=7\cdot3\\\\2x=21\ \ \ |:2\\\\\boxed{x=10.5}
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3 years ago
Can someone help with this
kari74 [83]

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5 0
2 years ago
In the game of​ roulette, a player can place a ​$9 bet on the number 11, and have a 1/38 probability of winning. If the metal ba
damaskus [11]

Answer:

1. What is the expected value of the game to the​ player?

Expected value= -$0.47368

2. If you played the game 1000​ times, how much would you expect to​ lose?

Expected value= -$473.68

Step-by-step explanation:

1. What is the expected value of the game to the​ player?

Expected value can tell how much you will gain/lose every time you do the game. To find the expected value you need to multiply every value with its chance to occur. There are two types of events here, winning and losing. You have 1/38 chance of winning $315 and 37/38 chance of losing $9.  

The expected value will be:

expected value= 1/38 * $315 + 37/38*(-$9) = $8.2894 - $8.7631

expected value= -$0.47368

You are expected to lose $0.47368 every time you play

2. If you played the game 1000​ times, how much would you expect to​ lose?

Expected value calculated for each roll. If you want to know how much you gain/lose by multiple rolls, you just need to multiply the expected value with the number of rolls. The game has negative expected value so you are expected to lose money instead of gaining money. The money you expected to lose will be:

number of roll * expected value

1000 timer * -$0.47368/time= -$473.68

You are expected to lose $473.68 if you play the game 1000 times.

6 0
2 years ago
9/5 rename as a mixed number
Anon25 [30]
4 1/5 because 4+5=9 so 4 then you will have 1/5
3 0
2 years ago
Read 2 more answers
HELP!!!
Jlenok [28]
You can compose, or create, a parallelogram (a four-sided shape with two sets of opposite, parallel sides) using two shapes, such as triangles or squares. You can decompose, or take apart, a parallelogram by dividing it from opposite corners, either vertically or horizontally.
6 0
2 years ago
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