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lubasha [3.4K]
3 years ago
13

A school director must randomly select 6 teachers to participate in a training session. There are 30 teachers at the school. In

how many different ways can these teachers be selected, if the order of selection does not matter?
Mathematics
2 answers:
kvv77 [185]3 years ago
6 0

593775 .................(APEX)

Marina86 [1]3 years ago
5 0
It would be 593,775 
(apex)
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|3x-7|-7=x solve the equation for all values of x
romanna [79]

The solutions to the given equation containing absolute value term |3x-7| - 7 = x are 0 and 7.

<h3>What are the solutions to the given equation?</h3>

Given the equation in question;

|3x-7| - 7 = x

First, add 7 to both sides.

|3x-7| - 7 + 7 = x + 7

|3x-7|  = x + 7

Next, remove the absolute value term, this creates a ± on the right side of the question.

|3x-7|  = x + 7

3x-7  = ±( x + 7 )

The complete solution is the result of both the negative and positive portions of the solution.

For the first solution, use the positive of ±.

3x-7  = ( x + 7 )

3x - 7  =  x + 7  

3x - x = 7 + 7

2x = 14

x - 14/2

x = 7

For the second solution, use the negative of ±.

3x-7  = -( x + 7 )

3x-7  = -x - 7

3x + x = -7 + 7

4x = 0

x = 0/4

x = 0

Therefore, the solutions to the given equation containing absolute value term |3x-7| - 7 = x are 0 and 7.

Learn to solve more equation involving absolute value term here: brainly.com/question/28635030

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4 0
1 year ago
Suppose there are three balls in a box. On one of the balls is the number 1, on another is the number 2, and on the third is the
quester [9]

Step-by-step explanation:

a) X is a discrete uniform distribution. As the number of outcomes is only 3.

b) sum is at least 4

X ≥ 4

i.e  (1,3) or (2,3)

probability of X ≥ 4 is 2/3

2/3= 0.667

66.7 % is the probability of the outcome to have  a sum at least 4.

c) The 3 likely outcome of X

<em>(1,2) where X ; </em> 1+2=3

<em>(1,3) where X ;</em> 1+3=4

<em>(2,3) where X ;</em>  2+3=5

Mean = 3+4+5/ 3

Mean = 4

Feel free to ask any uncleared step

8 0
3 years ago
Is it possible to identify The exact values of all the original service times? A. Yes. The data values in each class are equal t
kakasveta [241]

Answer:

C.

Step-by-step explanation:

The answer to your question would be C. No, the data values in each class could take on any value between the class limits, inclusive.


I hope it helps! Have a great day!

Muffin~

8 0
2 years ago
Read 2 more answers
How do I solve and find x?
Sphinxa [80]

Answer:

x = 76.5

Step-by-step explanation:

\frac{x}{4.5} = 22 - 5

\frac{x}{4.5} = 17

x = 17 x 4.5

x = 76.5

5 0
2 years ago
Please help me please
Lerok [7]

Answer: circumference: 22π  area: 121π

Step-by-step explanation:

area of a circle is \pi r^2

circumference is 2\pi r

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