Question

Is the set of multiples of 4 closed under addition? Explain why or provide a counterexample if not.

A.
Yes, because the sum of any two multiples of 4 is also a multiple of 4.

B.
Yes, because the sum of any two multiples of 4 is also a multiple of 8.

C.
No, and a counterexample is –4 + (–8) = –12.

D.
No, and a counterexample is 26 + 16 = 42.

Answer 1

@Loser66

Answer 2

can someone help plz????

Answer 3

thx

Answer 4

ha changed your pic

Answer 5

yea lol

Answer 6

Which step should be completed first to solve the equation 8x - 12 = 13 ?

A.
Add 12 to both sides.

B.
Add 13 to both sides.

C.
Divide both sides by 8.

D.
Subtract 13 from both sides.

Answer 7

can someone help

Answer 8

changed you pic again

Answer 9

yea lol

Answer 10

can someone help plz

Answer 11

changed you pic again

Answer 12

yup

Answer 13

ah ugly pics

Answer 14

yea yours

Answer 15

mod 4....

any multiple of 4 is congruent to 0 mod 4

Answer 16

what is the answer

Answer 17

bye

Answer 18

b

Answer 19

gg