Answer:
Dependent variable
Explanation:
Memory is the dependent variable in this context, since the researcher is trying to test the effect of sleep deprivation (independent variable) on memory (dependent variable). Thus, the variation of the experimental treatment would be applied to the sleep deprivation - perhaps by using a control group (people who did not experience sleep deprivation), or creating different sleep deprivation length to test if there are differences in the quality of memory encoding, storage, or retrieval.
20 x 9 + 25^6 / 27 - 5^4
20 x 9 + 244140625 / 27 - 625
180 + 244140625 / 27 - 625
244140805 /- 598
= -408262.215719
Answer: The correct answer is C.
Explanation:
Motorcyclists have to make themselves more visible at night by suing reflective tape both on the back of the helmet and in their clothes. Reflective tape is an adhesive, whose surface reflects light. You will be spotted immediately by a car passing by without any danger to drivers.
High beams are <em>only</em> used at night when you're unable to see the road in certain situations. If motorcycliests use them most of the time, this can improve the risk of blinding others on the road.
Both driving at slower speeds and in the center of the lane don't make motorcyclists more visible. They won't be spotted in the middle of the night until they are pretty close, which is going to be too late.