Question

For which operations is the set {0, 1} closed?

Choose all answers that are correct.

A.
multiplication

B.
division

C.
addition

D.
subtraction

Answer 1

Please help @hartnn

Answer 2

I need help

Answer 3

Hello

Answer 4

Hay

Answer 5

I'll help you

Answer 6

Well my question is up top

Answer 7

A):
0*0=0
0*1 = 0
1*1 = 1
Closed
B):
1/1=1
0/1 = 0
Not defined so it's not closed
C:
1+1 = 2
Not closed
D:
0-1=-1
Not closed
Your answer would be A. multiplication

Answer 8

Ok thanks

Answer 9

You're welcome

Answer 10

Here is the next one

Answer 11

Which equations show that the set of whole numbers is closed under multiplication?

Choose all answers that are correct.

A.
–1 • –1 = 1

B.
0 • –1 = 0

C.
0 • 2 = 0

D.
2 • 1 = 2

Answer 12

There's more?

Answer 13

there is 5 questions???

Answer 14

there are 5 questions

Answer 15

I would go with A and D on this one

Answer 16

OK can you tell me why

Answer 17

hold on I take that back
Do you know what whole numbers are?

Answer 18

Well..... like 1-2-3-4-5

Answer 19

I am not really sure

Answer 20

Whole numbers can be positive and negative

Answer 21

ok

Answer 22

0 is a whole number as well

Answer 23

k

Answer 24

now look at your answer choices

Answer 25

The answer would be all of them

Answer 26

because why

Answer 27

Whole numbers don't have fractions or decimal parts and NO negatives
You confused me when you only added negatives sorry

Answer 28

its ok

Answer 29

next question?

Answer 30

Which sets of numbers are closed under addition?

Choose all answers that are correct.

A.
{0, 2, 5, 8}

B.
even integers

C.
rational numbers

D.
{0}

Answer 31

are u good in math

Answer 32

hello welshfella

Answer 33

If you add any two numbers in a set and you get another number in that set then the set is closed under addition
Here's an example
2+2=4
2+4=6

Answer 34

Your two answers would be B and C

Answer 35

#4

Answer 36

Numbers p and q are whole numbers.

Which statements are always true?

Choose all answers that are correct.

A.
p + q is a whole number

B.
p – q is a whole number

C.
p • q is a whole number

D.
is a whole number

Answer 37

What's D?

Answer 38

positive and negative number

Answer 39

???

Answer 40

It got cut off

Answer 41

Ohhh

D. is a whole number

Answer 42

what is a whole number?

Answer 43

positive and negative number

Answer 44

It's A and C

Answer 45

thanks--last question

Answer 46

last q and then i will tell you what i got

Answer 47

okay

Answer 48

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 49

A.

Answer 50

Answer is A

Answer 51

thanksyou-i will tell you what i got

Answer 52

Alright

Answer 53

i got a 65%--not mastered-- :(

Answer 54

what questions were wrong?

Answer 55

I could have sworn I knew all of this from algebra

Answer 56

For which operations is the set {0, 1} closed?

Choose all answers that are correct.

A.
multiplication <----This one was correct

B.
division <----this one was correct

C.
addition

D.
subtraction

Answer 57

That was number 1

Answer 58

Ooh I thought we could only pick one answer

Answer 59

it says choose all that are correct

Answer 60

That was the first question you gave me

Answer 61

and you got another wrong?

Answer 62

#2. Only C and D were correct

Which equations show that the set of whole numbers is closed under multiplication?

Choose all answers that are correct.

A.
–1 • –1 = 1

B.
0 • –1 = 0

C.
0 • 2 = 0

D.
2 • 1 = 2

Answer 63

meh

Answer 64

I'm sorry

Answer 65

I'm more of a geometry person
I took algebra last year

Answer 66

Welshfella should have helped you

Answer 67

#3. B, C and D were correct


Which sets of numbers are closed under addition?

Choose all answers that are correct.

A.
{0, 2, 5, 8}

B.
even integers

C.
rational numbers

D.
{0}

Answer 68

Oh

Answer 69

Thanks anyway

Answer 70

Gah I feel so dumb now
i'm really sorry

Answer 71

It's ok

Answer 72

Bye

Answer 73

gave you a metal