Need help with number 15 please help

The general manager, marketing director, and 3 other employees of CompanyAare hosting a visitby the vice president and 2 other e

zubka84 [21]

Answer:

Following are the answer to this question:

Step-by-step explanation:

Let, In the Bth place there are 8 values.

In point a:

There is no case, where it generally manages its next groom is = 7 and it will be arranged in the 2, that can be arranged in 2! ways. So, the total number of ways are: $\to 7 \times 2= 14\\\\ \{(1,2),(2,1),(2,3),(3,2),(3,4),(4,3),(4,5),(5,4),(5,6),(6,5),(6,7),(7,8),(8,7),(7,6)\}\\$ $\therefore$ required probability:

$= \frac{14}{8!}\\\\= \frac{14}{8\times7 \times6 \times 5 \times 4 \times 3\times 2 \times 1 }\\\\= \frac{1}{8\times6 \times5 \times 4 \times 3}\\\\= \frac{1}{8\times6 \times5 \times 4 \times 3}\\\\=\frac{1}{2880}\\\\=0.00034$

In point b:

Calculating the leftmost position:

$\to \frac{7!}{8!}\\\\\to \frac{7!}{8 \times 7!}\\\\\to \frac{1}{8}\\\\\to 0.125$

In point c:

This option is false because

$\to P(A \cap B) \neq P(A) \times P(B)\\\\\to \frac{12}{8!} \neq \frac{14}{8!}\times \frac{1}{8}\\\\\to \frac{12}{8!} \neq \frac{7}{8!}\times \frac{1}{4}\\\\$

3 0

3 years ago

A robot can complete 5 tasks in 3 hour. Each task takes the same amount of time.

ahrayia [7]

A. it takes the robot 36 minutes to complete one task.

b. the robot can do one task and a half in one hour.

7 0

3 years ago

What is the value of a? <br> 14 – 2a = 4a – 16

VladimirAG [237]

14 - 2x = 4a - 16

First, add 2a to both sides. / Your problem should look like: $14 = 4a - 16 + 2a$
Second, simplify 4a - 16 + 2a to get 6a - 16. / Your problem should look like: $14 = 6a - 16$
Third, add 16 to both sides. / Your problem should look like: $14 + 16 = 6a$
Fourth, add 14 + 16 to get 30. / Your problem should look like: $30 = 6a$
Fifth, divide both sides by 6. / Your problem should look like: $\frac{30}{6} = a$
Sixth, 6 goes into 5 to get 30, so simplify $\frac{30}{6}$ to 5. / Your problem should look like: $5 = a$
Seventh, switch your sides. / Your problem should look like: $a = 5$

Answer: a = 5

3 0

3 years ago

Read 2 more answers

Required information NOTE: This is a multi-part . Once an answer is submitted, you will be unable to return to this part A club

algol13

Answer:

491400

Step-by-step explanation:

Given : A club has 28 members.

To Find : . How many ways are there to choose four members of the club to serve on an executive committee?

Solution:

We are supposed to choose four members of the club out of 28.