Answer:
A
Explanation:
You must know the basics of Trigonometry to solve this.
First, you must know that
lies in the second quadrant, so sin is negative.
Next, since
pi/4, is the reference angle of 3 pi/4, this means that we can set up a right triangle with pi/4 as an angle, we get
So the answer is A
Answer:
Drugs whether it's medication or for your own use, it can be become dangerous. It can affect the way your body and mind function; changing how you feel, think and behave. It can become a huge social problem because people mostly think it only affects the person using it. However, that's not the case. It can create a domino effect on the lives of those around the user. It is a social problem that normalizes drug use and affects individuals and their families.
Hope this helps! :)
Answer:
Hurricane.
Explanation:
Hurricanes get energy from the humid air at the ocean’s surface. The more humidity there is, the stronger the hurricane.
Answer:
The correct option is;
D) Observational study
Explanation:
In an observational study, the researcher observes, notes and record the an occurrence of events which are due to the existence of a condition, test, risk factor, such that the experimental units are apparently out of the control of the researcher, or there are no researcher intervention in the study, due to either physical constraint or laid down ethics.
In the question, the researcher observes to determine the the number of people that run a light through pre recorded traffic video providing a physical restraint which makes it an observational study.
