How do I do this this awnser a2x6 b3x6

How many of the triple permutations of the set A = {a,b,c,d,e} contain e? PLS NO BOTS

Mekhanik [1.2K]

If one of the elements of a triplet of A must be e, then you have

$\dbinom 42 = \dfrac{4!}{2!(4-2)!} = 6$

possible choices for the other two elements in the triplet. They are

{a, b, e}

{a, c, e}

{a, d, e}

{b, c, e}

{b, d, e}

{c, d, e}

Multiply this by 3! to account for all possible permutations of a given triplet and you end up with 3! • 6 = 36 possible permutations. They are

abe, aeb, bae, bea, eab, eba

ace, aec, cae, cea, eac, eca

and so on.

3 0

3 years ago

What percentage of people has an IQ score between 60 and 140?

ddd [48]

The percetage will be 68%

8 0

4 years ago

The volume of the pyramid is 8in3. What is the height of the pyramid? (Sides are 5in and 4in)

blsea [12.9K]

Answer:

h = 0.4 inches

Step-by-step explanation:

Given that,

The volume of the pyramid is 8 in³.

The sides of the pyramid are 5 in and 4 in.

We need to find the height of the pyramid.

The formula for the volume of pyramid is given by :

V = lbh

Where h is the height of the pyramid

So,

$h=\dfrac{V}{lb}\\\\h=\dfrac{8}{5\times 4}\\\\h=0.4\ in$

So, the height of the pyramid is 0.4 inches.

3 0

3 years ago

Two more than three times a number is 18.

Harman [31]

Let the number be x

ATQ

$\\ \sf\longmapsto 3x+2=18$

Take 2 to right side

$\\ \sf\longmapsto 3x=18-2$

$\\ \sf\longmapsto 3x=16$

$\\ \sf\longmapsto x=\dfrac{16}{3}$

$\\ \sf\longmapsto x=5.3$

$\\ \sf\longmapsto x\approx 5$

5 0

3 years ago

Abigail puts $9500 in a savings account with a simple interest rate of 7.9%. How much interest does Abigail earn after 3 years?

tatyana61 [14]

Answer:

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A = P(1 + r)thttps://www.manhassetschools.org › lib8 › DomainPDF

Do Now: Kyra invested $15,000 of her money at a 1.8% per year bank rate. Write ... Year 3? Year 4? Year 5? -Compounded interest adds interest not only to your principle ... after t years, P = principal amount (amount borrowed or invested), r = interest ... group earns $800 but decided to put its money in the bank fo

Missing: Abigail ‎$9500

How do I do this this awnser a2x6b3x6