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3 years ago

What two numbers multiply together and equal 16 and add together and equal -8?

Mathematics

1 answer:

Lunna [17]3 years ago

3 0

The two number you multiply are -4x4=-16 then take -16 and add it to 8 and it equals -8.

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If a is a positive integer and b is a negative integer, which expression must be positive?

nydimaria [60]

So, let's solve all of them and see:

a - (-b) = a + b ⇒ can be either positive or negative, depending on the numbers

a + (-b) = a - b ⇒ can either be positive or negative, depending on the numbers

a * (-b) = a * (-b) ⇒ negative answer no matter what

a / (-b) = a / (-b) ⇒ negative answer no matter what

So the answer is:

<em>"None of the above"</em>.

Hope it helped,

BioTeacher101

(If you have any questions, feel free to ask them in the comments)

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3 years ago

Michael: (a)(b)(c)

irinina [24]

Answer:

Ladonna: a + c + b

Step-by-step explanation:

-The commutative property in addition states that the order of arrangement of the integers to be added has no effect on their sum such that:

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-Since the alphabet follows the order a,b, c....

Only Ladonna rearranged to change this order to show the commutative property.

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*The commutative property should not be confused with the associative property.

-The latter allows you to change the order and terms within the closed parentheses while retaining the answer.

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3 years ago