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EleoNora [17]
3 years ago
10

Hello can you please help posted picture of question

Mathematics
1 answer:
lesya692 [45]3 years ago
3 0
We know that

the graphic has two intervals
x>1------> (1,∞)
equation of second order
and 
x<=1------> (-∞, 1]
equation of a line

therefore
<span>The only option that meets these requirements is option A
</span>
the answer is
the option A


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Illusion [34]

Given:

Total number of students = 27

Students who play basketball = 7

Student who play baseball = 18

Students who play neither sports = 7

To find:

The probability the student chosen at randomly from the class plays both basketball and base ball.

Solution:

Let the following events,

A : Student plays basketball

B : Student plays baseball

U : Union set or all students.

Then according to given information,

n(U)=27

n(A)=7

n(B)=18

n(A'\cap B')=7

We know that,

n(A\cup B)=n(U)-n(A'\cap B')

n(A\cup B)=27-7

n(A\cup B)=20

Now,

n(A\cup B)=n(A)+n(B)-n(A\cap B)

20=7+18-n(A\cap B)

n(A\cap B)=7+18-20

n(A\cap B)=25-20

n(A\cap B)=5

It means, the number of students who play both sports is 5.

The probability the student chosen at randomly from the class plays both basketball and base ball is

\text{Probability}=\dfrac{\text{Number of students who play both sports}}{\text{Total number of students}}

\text{Probability}=\dfrac{5}{27}

Therefore, the required probability is \dfrac{5}{27}.

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What is 9,150,000,000,000,000,000
Anettt [7]
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There are 32 children in class 6B. On Thursday, four of the children were absent. What percentage of the children were absent on
Alex777 [14]

Answer:

8%

Step-by-step explanation:

32÷4=8

i hope this helps ^^

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Umnica [9.8K]

Answer:

25

Step-by-step explanation:

2 to the power of 4 + 16

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