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AURORKA [14]
3 years ago
5

Answer this questions for 40 points! :) it is attached.

Mathematics
2 answers:
telo118 [61]3 years ago
5 0
Im so confused by this question but my only guess would be that since a coin is a 1/2 chance getting it heads twice is 1/2 * 1/2 which is 1/4 so the person who best they can get 2 heads in a row pays 1/4 of the bet being 5 dollars because 1/4 of 20 is 5 and the person who bets that they can't get two heads pays 15 dollars because that is 3/4 of the bet

tldr: 1/4 chance to get heads pays 1/4 of bet 5$
3/4 chance not to get heads pays 3/4 of bet 15$
irina [24]3 years ago
4 0

Answer:

$5

Step-by-step explanation:

You need to calculate the expected value of this game.

There are 4 equally likely outcomes:

1. heads-heads

2. heads-tails

3. tails-heads

4. tails-tails

The winnings for each outcome is:

1. heads-heads $20

2. heads-tails $0

3. tails-heads $0

4. tails-tails $0

Each outcome has a 0.25 probability of occurring.

The expected value is the sum of the products of the probability of each outcome and its winnings

expected value = 0.25 * $20 + 0.25 * $0 + 0.25 * $0 + 0.25 * $0

expected value = $5

To be a fair game, each play should cost $5.

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4m/s2

Step-by-step explanation:

6 0
2 years ago
-2 (x + 3) need help with distributive property -_-
Anvisha [2.4K]
-2 (x + 3)

-2x-6

You just distribute the -2 to the x and 3
3 0
3 years ago
I need help with this problem ASAP
saul85 [17]

Answer:

y=-7

Step-by-step explanation:

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8 0
3 years ago
Nick and his cousin Sara have the same birthday, but Nick is four years older than Sara. Let the variable X relresent Nick's age
Ronch [10]

Answer:

Let X represent Nick's age and Y represent Sara's age.

Then, it is given that: Nick is four years older than Sara.

We write the statement as:

X=4+Y

or Y=X-4

The only ordered pairs (X,Y) which satisfy the equation are: (0,-4) and (4,0) as you can see in the graph also.

In the graph X axis represents the age of Nick's age and Y-axis represent the age of Sara's age and the line Y=X-4 represents the relationship between the age of both.



6 0
3 years ago
-2x - 1 is what polynomial
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