Answer:
Signal lights have an important safety function. They demonstrate deceleration and a change in direction of the vehicle, and make the vehicle more visible to other road users when it is dark or during poor visibility.
Explanation:
Answer:
Commercial treaties are economic agree- ments between two or more countries to trade with each other on favorable terms. The Senate must approve all treaties by a two-thirds vote.
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Answer:
12th graders will score higher than the 9th graders on the ABC memory test
Explanation:
A directional hypothesis can be explained as a prediction made by a researcher regarding a difference between two variables or groups of a population. In this case, one can predict the direction based on some facts like past research, accepted theory and extensive experience.
In conclusion, the researcher will be able to know the difference in the 12th graders and 9th graders through the directional hypothesis, which will help him to find out that, the 12th graders will score higher than the 9th graders on the ABC memory test based on the experience they have gathered so far.
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