A,b, c and a because of how the forms are
Answer:
Well, for one, point R isn't included in the picture, so that's a dead end. I'm just going to guess its C
A mathematical pair that is <u>equivalent</u> to the given expression is -20 + 48i.
<u>Given the following expression:</u>
To determine a mathematical pair that is equivalent to the given expression:
In this exercise, you're required to solve for a mathematical expression that is equivalent to the given expression. Thus, we would simplify the expression by applying the perfect-square trinomial.
<h3>The perfect square trinomial.</h3>
Mathematically, the perfect-square trinomial is given by this expression:
Comparing the expressions, we have:
Substituting the values, we have:
<u>Note:</u> = -1
Simplifying further, we have:
Read more on mathematical pairs here: brainly.com/question/13170908
The difference between comparative advantage and absolute advantage is that: A. Comparative advantage measures opportunity cost and absolute advantage measures efficiency.
<h3>What is a comparative advantage?</h3>
A comparative advantage can be defined as the ability of a business firm or country to produce goods and services at a lower opportunity cost than their rivals (competitors) or trade partners.
<h3>What is an opportunity cost?</h3>
An opportunity cost is also referred to as alternative forgone and it can be defined as the value, profit or benefits that are given up and forfeited by an individual or business firm, in order to choose or acquire something that is deemed most significant at a particular point in time.
In this context, we can infer and logically deduce that the difference between comparative advantage and absolute advantage is that comparative advantage measures opportunity cost and absolute advantage measures efficiency.
Read more on comparative advantage here: brainly.com/question/12291750
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Using the sum of an arithmetic sequence concept, the total number of seats in the hall is 2604
The number of seats in a row increases by 2 per row :
- First row = Row 23 - Row 1 = 22
- Last row = Row 42 - Row 23 = 19
Number of seats in row 1 = 65 - 2(22) = 65 - 44 = 21 seats
Number of seats in row 42 = 65 + 2(19) = 65 + 38 = 103 seats
Common difference = 2
<u>Using the sum of nth term in a sequence</u> :
Sn = n/2(a + l)
- a = <em>first</em><em> </em><em>term</em><em> </em>
- <em>l</em><em> </em><em>=</em><em> </em><em>last</em><em> </em><em>term</em><em> </em>
Sn = 42/2(21 + 103)
Sn = 21(21 + 103)
Sn = 21(124)
Sn = 2604
Therefore, the total Number of seats is 2604.
Learn more : brainly.com/question/25331847