When a product of integers has an odd number of negative factors, then sign of the product is?

The product of an even number of negatives give us a positive number. An odd number of - 1's gives us a negative one, -1. This can be applied to any set of products. The product of an odd number of negatives give us a negative number.

Step-by-step explanation:

1. 3

2. 4

3. 1

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-wfz

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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