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nevsk [136]
3 years ago
9

Please help me simply following expression

Mathematics
2 answers:
Anna [14]3 years ago
6 0

Answer: the following expression? What following expression?

Step-by-step explanation:

VMariaS [17]3 years ago
5 0
I don’t see the following expectations
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A group of 8 friends (5 girls and 3 boys) plans to watch a movie, but they have only 5 tickets. If they randomly decide who
nalin [4]

Answer:

53.57%

Step-by-step explanation:

We have to calculate first the specific number of events that interest us, if at least 3 are girls, they mean that 2 are boys, therefore we must find the combinations of 3 girls of 5 and 2 boys of 3, and multiply that, so :

# of ways to succeed = 5C3 * 3C2 = 5! / (3! * (5-3)!) * 3! / (2! * (3-2)!)

 = 10 * 3 = 30

That is, there are 30 favorable cases, now we must calculate the total number of options, which would be the combination of 5 people from the group of 8.

# of random groups of 5 = 8C5 = 8! / (5! * (8-5)!) = 56

That is to say, in total there are 56 ways, the probability would be the quotient of these two numbers like this:

P (3 girls and 2 boys) = 30/56 = 0.5357

Which means that the probability is 53.57%

8 0
3 years ago
I need help with this please
Roman55 [17]

Answer:

the answer is 80 degrees. angle between 2 parrael line is same

6 0
2 years ago
Read 2 more answers
A tv show is on from 7:00 to 8:00pm.If there are 18 minutes of advertisements during that time,what percent of the show was adve
svetlana [45]
There are 60 minutes in an hour and percent means per one hundred so:

p/100=18/60

p=1800/60

p=30%
3 0
3 years ago
Read 2 more answers
Find the circumference of the given circle 11 ft
nasty-shy [4]

Answer:

69.12

Step-by-step explanation:

5 0
3 years ago
Match the equation with the step needed to solve it.
ziro4ka [17]

To solve this, you need to isolate/get the variable "m" by itself in the equation:

1. 2m - 1 = 3m    Subtract 2m on both sides to get "m" on one side of the equation

2m - 2m - 1 = 3m - 2m

-1 = m

2. 2m = 1 + m     Subtract m on both sides to get "m" on one side of the equation

2m - m = 1 + m - m

m = 1

3. m - 1 = 2       Add 1 on both sides to get "m" by itself

m - 1 + 1 = 2 + 1

m = 3

4. 2 + m = 3   Subtract 2 on both sides to get "m" by itself

m = 1

5. -2 + m = 1      Add 2 on both sides to get "m" by itself

m = 3

6. 3 = 1 + m     Subtract 1 on both sides to get "m" by itself

2 = m

8 0
3 years ago
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