Why 0 factorial equal to 1

you can see the factorial as many different ways, i will only show you two

you can see  

so 0! would mean that

the other way you can see factorial is as the number of ways to order n things

let's say we have

a   b and c and we want to arrange them in all possible ways so those are

abc

acb

bac

bca

cab

cba

and no more

for just a and b

we have

ab

ba

and no more

for just a

we have only

a

for no objects we have

that way, the one that it's upward, it's a bit philosophical but i hope you understand it

1. "Six less than twice a murider."

A. 6 - 2x

B. 2x - 6

C. 6x-2

D. 2 - 6x

2. "Five times the sum of a number and four."

A. 5y + 4

B. 4(y + 5)

C. 5 + 4y

D. 5(y + 4)

3. Which is the correct translation of the given 2(m - 3)?

A. Twice difference of 3 and miste C. Twice the difference of m and 3.

6. Twice the sum of m and 3.6

D. Twice the sum of m and 3.

4. "Ten less than thrice the a number"

A. 10 - 3b

B. 3b - 10

C. 106 - 3

D. 3 - 10b

5. Given, m - 4, complete this: 4

A. minus

B. diminished by

a number

C. subtracted from

D. decreased by

6." The ratio of 7 and a number decreased by 2."

A. 7/(x-2)

B. (71x) - 2

C. 7X-2

D. 7 - 2/x

7. "The difference of 10 and k divided by 4 yields to 2."

A. (10-k)/4 = 2 B. 10 - (k/4) = 2 C. 10K/4 = 2

D.K-10/4 = 2

8. "Four times the sum of 12 and y is equal to 60.

A. 4y + 12 = 60 B. 4 + 12y

C. 4(12) + y = 60 D. 4(12 + y) = 60

9. All of the following are correct except

2x + 4; Twice a pumber

A. increased by B. added to

C. plus

D. more than

= 60

10. "8 times a number decreased by 13 becomes 3."

A. 8x + 13 = 3 B. 86- 13 = 3

C. 13 - 8x = 3

D. 13 + 8x = 3

branleast kpo ang sasagot neto

Step-by-step explanation:

625