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charle [14.2K]
3 years ago
11

Does the number -2.675 belong to the set of integers

Mathematics
1 answer:
tankabanditka [31]3 years ago
4 0

Answer:

yes

Step-by-step explanation:

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If you draw a card with a value of three or less from a standard deck of cards, I will pay you $43. If not, you pay me $11. (Ace
valina [46]

If W is a random variable representing your winnings from playing the game, then it has support

W=\begin{cases}43&\text{if you draw something with value at most 3}\\-11&\text{otherwise}\end{cases}

There are 52 cards in the deck. Only the 1s, 2s, and 3s fulfill the first condition, so there are 12 ways in which you can win $43. So W has PMF

P(W=w)=\begin{cases}\frac{12}{52}=\frac3{13}&\text{for }w=43\\1-\frac{12}{52}=\frac{10}{13}&\text{for }w=-11\\0&\text{otherwise}\end{cases}

You can expect to win

E[W]=\displaystyle\sum_ww\,P(W=w)=\frac{43\cdot3}{13}-\frac{11\cdot10}{13}=\boxed{\frac{19}{13}}

or about $1.46 per game.

3 0
3 years ago
How do I simplify this problem
ziro4ka [17]
8: 17/24
9: 7/48
10: 5 1/4
11: 1.75
3 0
3 years ago
At Davidson’s bike rentals, it costs $10 to rent a bike for 3 hours. How many dollars does it cost per hour of bike use?
S_A_V [24]

Answer:

10 = 3 hours

one hour = 3.33 dollars

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The wholesale price for a pair of shoes is $3.50. A certain department store marks up the wholesale price by 60%. Find the price
Harrizon [31]

Answer:

Step-by-step explanation:

markup is 3.50(0.60) = $2.10

sales price is 3.50 + 2.10 = $5.60

one could also just multiply the wholesale price by 1.60

3.50(1.60) = $ 5.60

8 0
2 years ago
What is the correct answer?
DochEvi [55]
The third one down is the correct answer. (-55 and 1)
4 0
3 years ago
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