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4 years ago

A bag contains 12 red checkers and 6 black checkers. You will randomly select two checkers, one at a time, without replacement.

Mathematics

1 answer:

hoa [83]4 years ago

7 0

b) you could choose :

red, black

black, red

red, red

c) p(black, red) = (6/18)(12/17) = 72/306 = 4/17

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CaHeK987 [17]

Suppose you roll a red number cube and a blue number cube. What is the probability that you will roll a 5 on the red cube and a 1 or 2 on the blue cube?

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3 years ago

Select the statement that describes this expression: (10 − 3) x 4 + 5.

tankabanditka [31]

Answer:

Multiply 4 by the difference of 10 and 3, then add 5

4 0

3 years ago

Read 2 more answers

Solve the equation + explanations

sergey [27]

Answer:

(1 + √2)/2

Step-by-step explanation:

Assuming the values are in degrees,

sin(45) = sin(π/4)=√2/2

cos(60) = cos(π/3)=1/2

thus

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3 years ago

Is 6.1 an rational number?

Bezzdna [24]

Yes it is because it ends

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3 years ago

The local fire company is having a raffle to raise money for Fourth of July fireworks. They will sell one thousand tickets at $1

Anestetic [448]

Answer:

The expected value of a ticket is of -$5.

Step-by-step explanation:

The expected value of the ticked is the probability of earning each prize multiplied by the prize, and subtracted by the value of the ticket.

Value of the ticket:

$10.

100 tickets are sold. They will award one first prize of $300, one second prize of $150, and one third prize of $50.

Thus, 1/100 probability of earning $300, 1/100 probability of 150 and 1/100 probability of 50. So

$E = \frac{1}{100}300 + \frac{1}{100}150 + \frac{1}{100}{50} - 10 = 3 + 1.5 + 0.5 - 10 = -5$

The expected value of a ticket is of -$5.

7 0

3 years ago