Question

Algebra help please

Answer 1

Okay, what is your question? I might be able to help.

Answer 2

Hold on

Answer 3

Okay.

Answer 4

Okay. So for question 2. The communative property says this:\[x \times y =y \times x\]So, 7 * 3 * x would be equivalent to x * 3 * 7.

Answer 5

Question 3 is A. Even though what I said is true, a parenthesis can never change place.

Answer 6

so for question 2 its c??

Answer 7

what about rest?

Answer 8

Yes, for question 2 it is c. I am trying to figure our Question 3.

Answer 9

Actually I really can't figure out question 3. I am going to skip it or maybe before I can get back to it someone else can solve it.

Answer 10

But didnt you say question 3 is A?

Answer 11

Commutative says that ab=ba. So that's demonstrated in ONE of the choices in question 3, which one?

Answer 12

would it be a?

Answer 13

Yes, I would say A for #3. Because it takes the product, and switches the order of the factors.

Answer 14

@tesla117 , do you have ideas on some of these? Maybe you should say what you think the answers are, and ask questions if you are unsure why. You will get more benefit than just having someone tell you each answer.

Answer 15

I hope I am not confusing. For question 2 its C and for question 3 its A. Question 4 is the one I am having troubles in.

Answer 16

question 4 i think its 15?

Answer 17

An example of associative property would be 1 + (2 + 3) = (1 + 2) + 3. So, for question 5 it would be A, B, and D.

Answer 18

On 4, there is one factor on the LHS that isn't on the RHS. You need to include that "missing factor" on the RHS.

Answer 19

than 3a??

Answer 20

In question six they try to trick you, but it is C.

Answer 21

No, there is one factor of 15 on the LHS, and already you have one factor of 15 on the RHS.

No, there is a factor of 3a already on the RHS.

Answer 22

uestion 7 seems to be C also.

Answer 23

so what would 4 than?

Answer 24

And question 8 I need help in @DebbieG

Answer 25

Please don't just give answers, @kewlgeek555
OpenStudy values the Learning process - not the ‘Give you an answer’ process.
Don’t post only answers - guide the asker to a solution.
http://openstudy.com/code-of-conduct

Answer 26

would 8 be 6b?

Answer 27

I am not sure for question 4 or 8 and I don't want to give you the wrong guidance.

Answer 28

OK, #8... just look at what is on the LHS that is NOT on the RHS.

Answer 29

LHS??? RHS???

Answer 30

I mean, this is just associativity of addition:

(A + B) + C = A + (B + C)

Answer 31

SORRY - left hand side, right hand side.

Answer 32

Oh okay,

Answer 33

just saving some typing... lol :)

Answer 34

would it be 2y?

Answer 35

So, the movement of the parenthesis doesn't change anything, you just need the term that is missing.

RIGHT - 2y!

Answer 36

okay can we go back to question 4 please?

Answer 37

would it be 4y

Answer 38

Yes, I was trying to do them one at a time, but we just kept barreling forward... lol.

RIGHT, 4y is the only factor that's missing on the RHS. :)

Answer 39

There is some more, can you help me? U make me understand this so well!!!

Answer 40

It's really illustrating commutativity of multiplication - you can shuffle the order of the terms around and it doesn't change the product. So you just need to have all the same factors (even in a different order) for them to be equal.

Answer 41

lol sure, happy to help.

Answer 42

okay :D

use the distributive property to simplify the expression: 5(-3x-7)
A: -15x-7
B: -15+7
C: -15+35
D: -15x-35

Answer 43

Distributive property says that you can "distribute" the factor through the parentheses:

a(b + c) = ab + ac

So just do that with the expression above: Multiply the 5 to each term of the sum inside the parentheses.

Answer 44

Tell me what you get, and I'll tell you if you're correct :)

Answer 45

sorry i had step away can you give me one min.

Answer 46

im little confused

Answer 47

Ok - ask questions. what is confusing?

Answer 48

Let me show you a couple of simpler examples, then we'll come back to your problem.