- anonymous

PLZZZ HELP
Which equations show the identity property of multiplication?
Choose exactly TWO ANSWERS that are correct.
A. -1/4 • (–4) = 1
B. –3 • 1 = –3
C. 4.2 = 1 • 4.2
D. 0 • (–8) = 0

- katieb

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- tkhunny

What is the multiplicative identity? It's a number.

- anonymous

1

- tkhunny

Okay, which demonstrates multiplication by 1?

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## More answers

- anonymous

so B and C?

- tkhunny

Done. Move on to the next one.

- anonymous

okay Will you still help me?

- anonymous

Using the commutative property of multiplication, which number completes the statement correctly?
(3 • 4.6) • (–5) = (4.6 • ) • (–5)

- anonymous

@tkhunny ?????

- anonymous

@Projects ??

- Projects

What's your choices?

- anonymous

i just have to put in a numbur... (3 • 4.6) • (–5) = (4.6 • ___ ) • (–5)

- Projects

Ahh, okay so no choices? Well let's see.. 3 times 4.6 equals?

- skullpatrol

ab = ba

- anonymous

it equals 13.8

- skullpatrol

What is 4.6 times 3?

- Projects

Okay so now (13.8) times (-5) equals?

- anonymous

-187.561446164

- skullpatrol

No need to go that far @projects :)
The question asks for the commutative property not the associative property

- Projects

Whoops, miss read it.. thanks for pointing it out for me @skullpatrol c:

- Projects

Well now @fryfry2003 so what do you predict the number is going to be for the blank space?

- Projects

|dw:1433434867004:dw| As @skullpatrol said, ab = ba

- anonymous

3?

- skullpatrol

Good work, that is correct :-)

- Projects

Dingdingding! Lol, remember you want both sides to equal.

- skullpatrol

3 is the only number that will make that equation a true statement
That is, both sides will have the same value.

- Projects

^^^^

- skullpatrol

New students should learn that the equals sign is used to show
That the two expressions on either side have the same value.
4 + 2 = 6 is true because
6 = 6 is a true statement.

- skullpatrol

Any questions? @fryfry2003

- anonymous

NOPE

- tkhunny

One question per thread, please.

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