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:
Excuse me, is this supposed to be an actual question or is it a complaint?
Explanation:
The correct answer is - 2. There's an increase in the number of snakes and insects, and the storks face increased competition for food.
The significant decrease in the number of eagles, because of the human activity, and of the rabbits, because of a virus, has been of great use for the populations of the snakes to increase, as well as the populations of the insects. That has happened because the snakes lost their predator, and the insects lost a competition for a food source, so their numbers rose.
On the other hand, because of the increase of the number of snakes, the storks had started to face increased competition, as both have the same food source, the frogs.
The example which best illustrates the role of the legislative branch in national security is: A. united states meets with other leaders to negotiate a trade treaty.
<h3>What is the
legislative branch?</h3>
Legislative branch can be defined as one of the three branch (arm) of government that is saddled with the responsibility of creating and enacting laws in a particular country.
In the area of national security, an example which best illustrates the role of the legislative branch is the United States of America meeting with other world leaders to negotiate a trade treaty, so as to foster the buying and selling of goods among them.
Read more on trade here: brainly.com/question/17727564