The correct answer is A. 20.2 s
Explanation:
The table shows there were three trials to measure how much time a toy car needs to move 1 meter on different surfaces. Now, to find the average time on a surface simply add the results of the three trials and divide this by number 3 (number of trials). The process to know the average time on dirt is shown below:
20 + 19.2 + 21.5 = 60.7 - Results of each of the trials
60.7 ÷ 3 = 20.2 s - Divide the total by the number of trials
This means the average time for the toy to move on dirt was 20.2s
Answer:
if you're looking for a minimum, people only need to eat every three day to survive, but the recommended amount of calories is 3000 calories a day for an average adult.
Explanation:
Answer:
True
Explanation:
Called selective breeding
Answer:
d) II, III, IV, V, Rx, OTC
Explanation:
Based on its potential lethality, harm, addiction potential etc. drugs can be divided into five groups (drug schedule). Schedule I drugs are most restrictive and are not used in treatment and have extremely high addiction potential (heroin, for example). They are illegal substances and are not used in medical treatment. Going down to schedule V drugs are becoming less and less harmful and restricted with less potential for abuse.
Rx drugs are the ones that require a prescription in order to be purchased in the pharmacy.
OTC drugs are, so-called "over the counter" drugs, which can be purchased without prescription, making them the least restrictive.
So, the correct streak, from most to least restrictive drug, is:
II -> III -> IV -> V -> Rx -> OTC