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I answered this problem recently

https://web2.0calc.com/questions/probability_53928#r1

here was my solution

probability is defined by the 

amount of times when it is true/ total amount of times (or false + true in most cases)

the total is 6! or 6*5*4*3*2*1

since we have the pair's of socks over 3 days we take every other integer to multiply

6*4*2

so if we take 6,4,2 out of the denominater

1/5*3*1

since 1*x = x we can take this out of the equation

5*3 = 15

the solution is 1/15

this problem was already posted and answered by yeetww

https://web2.0calc.com/questions/in-the-superlottery-three-balls-are-drawn-at-random

a = 2/3

b = 1536

c = 8/25

d = -16

e = 3*2^(1/2) which is approxomately 4.2

the correct answer is D C A E B

This answer is useless.

I think I'll wait and get advice from someone who doesn't completely \(\text{su} \text{ck}\) at math.

\(\binom{n}{k} = \binom{n - 2}{k} + \binom{n - 2}{k - 1} + \binom{n - 1}{k} + \binom{n - 1}{k - 1} + \binom{n}{k - 1} + \binom{n}{k + 1}\)

Try using pascal's Identity which states that \(\binom{n}{k} = \binom{n - 1}{k} + \binom{n - 1}{k - 1}\)

https://artofproblemsolving.com/wiki/index.php/Pascal%27s_Identity

hopefully this helps :)

If I understand your question:

You should have specified that of the "n" people, how many of them do you intend to use to review a book!

1 - If you intend to use 2 people, then minimum n = 15. Because 15 C 2 =105 unique combinations

2 - ................................3.......................................n = 10. .............. 10 C 3 = 120 ................................

3 - ................................ 4 .................................... n  = 9 ................. 9 C 4 = 126 .................................

4 - ................................ 5 .................................... n  = 9 .................. 9 C 5 = 126 .................................

5 - ...............................  6 ...................................  n  = 10 ................ 10 C 6 = 210 ...............................

And so on...............!

Need correct question with accurate numbers very soon !!!!!!!

please include the numbers in your problem and take a little time to format it,

its pretty odvious that you are copy and pasting this from a website but take a second to give us the actual problem if you want a real solution

probability is defined by the 

amount of times when it is true/ total amount of times (or false + true in most cases)

the total is 6! or 6*5*4*3*2*1

since we have the pair's of socks over 3 days we take every other integer to multiply

6*4*2

so if we take 6,4,2 out of the denominater

\(\frac{1}{5*3*1}\)

since 1*x = x we can take this out of the equation

5*3 = 15

the solution is \(\frac 1 {15}\)

(c)

Yes there does. That's between the 50% and 15% of the red and blue potions, so there is a way to get 25% syrup.

(b)

Using the same variables as part (a), we have two linear equations below:

\(r+b=180\)

\(\frac12r+\frac{3}{20}b=72\)

We can solve this using either substitution or elimination. Personally, I prefer elimination, so I'll show that work below, but both give the same answers.

\(r+\dfrac{3}{10}b=144\)               Multiply equation 2 by 2

\(\dfrac{7}{10}b=36\)                        Subtract above equation from equation 1

\(b=\dfrac{360}{7}=51+\dfrac{3}{7}\)       Solve for b

Next, we substitute that into the first equation to find that \(r=\dfrac{900}{7}=128+\dfrac47\)

In decimal form, that's

r=128.57

b=51.42

(a)

Setting the amount of red potion to \(r\;\rm mL\) and the amount of blue potion to \(b\;\rm mL\) , we write the equation \(\dfrac{\frac12r+45}{r+300}=\dfrac15\). Solving this, we have r=50 mL

There are 4 ways to do this. Here are the cases:

1. Only one color.

There's two ways to do this: all color one, or all color two. 

2. Two colors.

There's two ways to do this: One side color one and two sides color two, or two sides color one and one side color two. 

Every other arrangement can be rearranged to get this.

That's a total of 4. 

By Pythagoras, the ratio of the longer side to the shorter side of the rectangle is 5/2.

This goes to a russian video uploading website that I can't open...

That's the diameter of the circle.

Using the formula \(r=\dfrac{\text{Area of triangle}}{\text{semiperimeter}}\) and heron's formula, we can find the inradius.

The semiperimeter is \(s=35\), so using \(A=\sqrt{35(35-20)(35-21)(35-29)}\), we have \(A=210\). Dividing by \(s=35\), we get the inradius 6.

The radius is 6.

The value of n is 48.

F(x) = (x^3 - 2x)/(x^2 + 7x + 2)

how can that be

The radius of the circle is 5.

The area of triangle ABC is 15.

You can find the answer posted here: http://clicnews.com

how did you get that?

You can find the answer posted here: http://2baksa.ws