How many ways can 6 people be chosen and arranged in a straight line if there are 8 people to choose from? 720 20,160 40,320 48?

Mathematics

2 answers:

Rudik [331]3 years ago

5 0

The number of permutations of 8 people taken 6 at a time is given by:
$8P6=\frac{8!}{(8-6)!}=20,160
$

blagie [28]3 years ago

5 0

Answer: 28ways

Step-by-step explanation:

This has to do with selection i.e selecting 6people from pool of 8 people

Since combination have to do with selection, the selection can be done I'm 8C6 ways

Generally, nCr = n!/(n-r)!r!

8C6 = 8!/(8-6)!6!

= 8!/2!6!

= 8×7 × 6!/2!6!

= 8×7/2!

= 56/2

= 28ways

You might be interested in

Lee is thinking of 2 numbers, the product is 18.the quotient is 2. what are yhe two numbers?

jeka94

$xy=18\\
\dfrac{x}{y}=2\\\\
xy=18\\
x=2y\\\\
2y\cdot y=18\\
2y^2=18\\
y^2=9\\
y=-3 \vee y=3\\\\
x=2\cdot (-3) \vee x=2\cdot 3\\
x=-6 \vee x=6\\\\
\boxed{(x,y)=\{(-6,-3),(6,3)\}}$

4 0

3 years ago

I don't understand...

Karolina [17]

There both being multiplied by 5

6 0

3 years ago

Read 2 more answers

You flipped a coin 50 times and got 23 heads.What is the experimental probability of getting a head? Write your answer as a frac

lys-0071 [83]

Answer:

23/50, 0.46, and 46%

Step-by-step explanation:

This problem is stating that every fifty times you flip a coin you get 23 heads. Finding the fraction is simple, it would be 23/50 because it is expressing the probability. The problem clearly states that every 50 times you get 23 heads. To find the decimal, take the fraction, 23/50, and multiply the numerator and denominator by 2. you get 46/100 which is 0.46. A percent is just a fraction out of a 100 which would make the percent 46.

8 0

3 years ago

Make sure you draw a picture to help solve the problem and show all your work:

hodyreva [135]

Answer:

answer in the pic

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)