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2 years ago

8

The bottom number (the bigger number) on each element square on the Periodic Table is called __________. Question 5 options: Pro

ton Electron Atomic Number Atomic Mass

1 answer:

Phoenix [80]2 years ago

8 0

Answer:

Atomic Number

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What is the adjective in Kathy is helpful

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Helpfull will be the adjective

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In long-run equilibrium, the perfectly competitive firm earns __________ economic profits.

DochEvi [55]

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.

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1 year ago

The professor informs the class that there will be a test next week. what is the probability that a randomly selected student st

marusya05 [52]

The probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade is: D. 0.80.

<h3>How to calculate the probability?</h3>

In this exercise, you're required to determine the probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade. Thus, we would apply Bayes's theorem.

Let S represent studied for.

Let B represent a score of B or higher grade

Therefore, we need to find P(S|B):

$S|B = \frac{B|S \times S}{B|S \times S\; +\; B|S' \times S'} \\\\S|B = \frac{0.55 \times 0.6}{0.55 \times 0.6 \;+ \;0.2 \times 0.4}\\\\S|B =\frac{0.33}{0.33 + 0.08} \\\\S|B =\frac{0.33}{0.41}$

S|B = 0.80.

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<u>Complete Question:</u>

At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they will get a B or higher on the tests. If they do not study, there is a 20% chance that they will get a B or higher on the tests. The professor knows from prior surveys that 60% of students study for the tests. The probabilities are displayed in the tree diagram.

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One good way to cut down on the expenses of technology while in college is to

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The answer is D. You should take advantage of the free WIFI.

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Tamako knows that objects in our solar system revolve around one star called the sun. She was surprised to learn that there are

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binary star system and physical double star system

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