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ella [17]
3 years ago
14

Slove 2/3 (6w-18)=12

Mathematics
1 answer:
Ghella [55]3 years ago
7 0

Hello, the answer is simple it is W=6

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There are 3 directors, 4 management executives, 2 statisticians and 1 administrator. A committee of 4 members among them is to b
Vsevolod [243]

Answer:

1) 4/35

2) 11/14

3) 5/6

Step-by-step explanation:

First find the number of selections possible.

\frac{10!}{(10-4)!4!} = 210

There are 210 possible selections. Now we can determine the possibility for each group. For the first probability, since we only want one member from each committee, you would create a fraction by (group members in total / group member being extracted). For this instance, since its only one, we will do whole numbers. Multiply each other.

4*3*2*1=24

The probability for each member to get selected from each kind is : 24/210 or can be simplified to 4/35.

The probability of (I assume) at least one administrator is slightly different. Separate our two selections, the other three and the administrator. Find the number of selections possible for the other three... 4+3+2 = 9 others.

Find the probability for both a administrator included and three others.

\frac{11}{3} * \frac{1}{1} \\\frac{11!}{(11-3)!3!} \\\\165

\frac{165}{210} = \frac{11}{14}

The probability for an administrator and the other three is 165/210 or 11/14.

For the last one, you will figure out what the probability is for no director and use that % to substract from 100.

4+2+1 = 7

Get selections possible.

\frac{7!}{(7-4)!4!} = 35

Get probability of no director.

\frac{35}{210} = \frac{1}{6}

Substract 1/6 from 100%

1 - 1/6 = 5/6

The probability of having at least one director is 5/6.

7 0
3 years ago
How many different 10-letter permutations can be formed from 8 identical H's and two identical T's?
melamori03 [73]

Answer:

<h3>45 different permutations</h3>

Step-by-step explanation:

Given 10 letters with 8 identical H's and two identical T's, the number of different permutations will be expressed as;

= \dfrac{10!}{8!2!}

= \dfrac{10*9*8!}{8!*2!}\\ \\= \dfrac{10*9}{2*1}\\ \\= \dfrac{90}{2}\\ \\= 45

<em>Hence the number of different 10-letter permutations that can be formed from 8 identical H's and two identical T's is 45</em>

4 0
3 years ago
Two twin sisters, Gwen and Jackie, are both 20 years old in the year 2050. Jackie takes off on a round-trip to Vega, 25 light-ye
Contact [7]

Answer:

C. about 25 years.

Step-by-step explanation:

We have been given that two Jackie takes off on a round-trip to Vega, 25 light-years away. She travels at an average speed close to the speed of light, say, 0.9999c.

To find time it will take Jakie to reach Vega, we will divide the distance of Vega by Gwen's speed.

\text{Time}=\frac{\text{Distance}}{\text{Speed}}

\text{Time}=\frac{25}{0.9999}

\text{Time}=25.00250  

\text{Time}\approx 25  

Therefore, it will take approximately 25 years for Jakie to reach Vega and option C is the correct choice.

6 0
3 years ago
1. A square lot has an area of 64x² square units. What is the length of each side with full solution​
sergiy2304 [10]

\sqrt{64} = 8

The area of the square can be expressed as

area =  {s}^{2}

So to go back to the side length, you just need to find the square root of the area.

4 0
3 years ago
Read 2 more answers
(nearest cent) $2.045 - $1.09
GaryK [48]
The answer should be $0.955
5 0
3 years ago
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