To determine which pairs of products result in positive values, let's analyze each option:
- (0.5)(–0.4): This results in a negative value because a positive number multiplied by a negative number gives a negative result.
- (1.2)(–0.8): This also results in a negative value for the same reason as above.
Both products in this pair are negative.
- (–0.5)(–0.4): This results in a positive value because a negative number multiplied by another negative number gives a positive result.
- (1.2)(–0.8): This again results in a negative value.
Only one of the products is positive.
- (0.5)(0.4): This results in a positive value because both numbers are positive.
- (–1.2)(–0.8): This also results in a positive value for the same reason as above (both are negative).
Both products in this pair are positive.
- (0.5)(–0.4): As earlier, this results in a negative value.
- (1.2)(0.8): This results in a positive value as both numbers are positive.
Only one of the products is positive.
Based on this analysis, the pair that results in two positive values is:
(0.5)(0.4) and (–1.2)(–0.8).