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Naya [18.7K]
3 years ago
9

We have 6 face red cards (JQK x 2) and 16 black cards, so a total of 22 cards.The red face cards and the black cards numbered 2-

9 are put into a bag. Four cardsare drawn at random without replacement. Find the following probabilities:
a) All 4 cards are red
b) 2 cards are red and two cards are black
c) At least one of the red cards is red.
d) All four cards are black
Mathematics
1 answer:
In-s [12.5K]3 years ago
5 0

Answer:

I dont know

Step-by-step explanation:

only doing it for points

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Combine these unlike fractions, then simplify. 2 2/3 + 2 7/12 need answer asap plz explain
slega [8]

Answer: 5 1/4

Step-by-step explanation:

8/3 + 2 7/12

8/3 + 31/12

= 21/4

= 5 1/4

3 0
3 years ago
Add and express your answer in scientific notation (5.7 x 10^8) +(3.2 x 10^6)
kaheart [24]

5.7+3.2=8.9

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---

hope it helps

3 0
3 years ago
A single die is rolled twice. Find the probability of rolling an oddnumber the first time and a number greater than 2 the second
harkovskaia [24]

Answer:

1/3.

Step-by-step explanation:

The 2 events are independent so we multiply the 2 probabilities.

Prob(rolling an odd number) = 3/6 = 1/2.

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The required probability = 1/2 * 2/3

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5 0
3 years ago
Find the area of triangle ABC. Give your answer to 1 decimal place. Sine rule.
laiz [17]

Answer:

<h2> 31.7 cm^2</h2>

Solution,

In ∆ ABC

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or, 72 + 59 + <C = 180°

or, 131 + <C = 180°

or, <C = 180 - 131

< C = 49

Area of ∆ABC = 1/2 ab sin C

= 1/2 * 12 * 7 * sin 49

= 42 * sin 49

= 31.7 ( approximately)

Hope this helps...

Good luck on your assignment...

4 0
3 years ago
The probability of a randomly selected employee of a company being male is 60% the probability of the employee being less than 3
belka [17]

10%

? ? ? ? ? i think its probably not right

3 0
3 years ago
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