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MakcuM [25]
3 years ago
8

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics
1 answer:
Yuri [45]3 years ago
8 0

Answer:

B. 2

Step-by-step explanation:

she has 2/3 of it done in an 1/3 of an then in an hour 6/3 will be done and 6/3 simplified is 2

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The difference of two numbers is 8. If the sum of the smaller number and the square of the larger number is 148, what is the sma
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140

8 minuses by 148 is 140

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A human head remains conscious for around 20 seconds after being decapitated. ...
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3 0
2 years ago
Five thousand tickets are sold at​ $1 each for a charity raffle. Tickets are to be drawn at random and monetary prizes awarded a
aksik [14]

Answer:

the expected value of this raffle if you buy 1​ ticket = -0.65

Step-by-step explanation:

Given that :

Five thousand tickets are sold at​ $1 each for a charity raffle

Tickets are to be drawn at random and monetary prizes awarded as​ follows: 1 prize of ​$500​, 3 prizes of ​$300​, 5 prizes of ​$50​, and 20 prizes of​ $5.

Thus; the amount and the corresponding probability can be computed as:

Amount                            Probability

$500 -$1 = $499                1/5000

$300 -$1 = $299                3/5000

$50 - $1 = $49                     5/5000

$5 - $1 = $4                      20/5000

-$1                                   1- 29/5000 = 4971/5000

The expected value of the raffle if 1 ticket is being bought is  as follows:

E(x) = \sum x  * P(x)

E(x) = (499 * \dfrac{1}{5000} + 299 *\dfrac{3}{5000} + 49 *\dfrac{5}{5000} + 4 * \dfrac{20}{5000}  + (-1 * \dfrac{4971}{5000} ))

E(x) = (0.0998 + 0.1794+0.049 + 0.016  + (-0.9942 ))

E(x) = (0.3442 -0.9942 )

\mathbf{E(x) = -0.65}

Thus; the expected value of this raffle if you buy 1​ ticket = -0.65

7 0
3 years ago
Which shows a way to take apart 7?
WARRIOR [948]
3 and 4
2 and 5
6 and 1
7 0
3 years ago
NEED HELP FAST PLS CLICK TO SEE
Alexeev081 [22]
Y = -12 , -9

That’s the answer and good luck!
8 0
2 years ago
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