In perfectly competitive markets, firms in the market in the long-run, will earn zero economic profits.
<h3>What economic profits are earned in a perfectly competitive market?</h3>
In the short-run, there is a chance to earn a positive economic profit in a perfectly competitive market but this would then attract other companies into the market to make profits as well.
This then leads to the profits disappearing thanks to increased supply and lower prices. Companies would then leave and enter to either take advantage of profits or stop losses thereby keeping economic profits at zero in the long run.
Find out more on perfectly competitive markets at brainly.com/question/15712381
#SPJ1
The displacement of the girl which the relative change in her position from her starting point. Therefore, the shortest distance between her initial and final position is 58.85 m North - West
From the sketch of the girls movement attached below, the displacement of the girl can be calculated thus :
Using Pythagoras :
Displacement, d = √(50² + 20²)
d = √(2500 + 400)
d = √2900
d = 53.851
Therefore, the displacement of the girl, which is the shortest distance between her current position and starting position is 53.85 meters NW.
Learn more :brainly.com/question/1021211
The first One ☝ the answer
Considering the available options, the sentences that include a proper MLA parenthetical citation include "<u>Mahoney states that "the needs of speakers drive language change" (nsf.gov)."</u>
<h3>What is MLA parenthetical citation?</h3>
MLA parenthetical citation is the citation method that utilizes the author's last name, the page number, or other relevant source information in parentheses from sentences used.
<h3>Other sentences that include a proper MLA parenthetical citation include the following:</h3>
- Johnson claims that the English language began to deviate from its Germanic origins (4).
- In the eighteenth century, English was "departing from its original Teutonic character"(Johnson 4).
Hence, in this case, it is concluded that the correct answer is options A, E, and F.
Learn more about MLA Parenthetical citation here: brainly.com/question/8789070
