Answer:
A
Step-by-step explanation:
Tangent is opp over adjacent (square root 3 over 1 = square root 3)
Hope that helped! :))
<span>The derivative of e^(2x) is d/dx( e^(2x)) = e^(2x). d/dx (2x) = e^(2x).2 = 2e^(2x) . Yes, it is necessary to use the chain rule. Because withour chain rule the differentiation will be incomplete. Thsu, the derivtive of e^(2x) is 2e^(2x).</span>
Answer:
The cost of one adult ticket is $8 and cost of one student ticket is $4.
Step-by-step explanation:
Let,
x be the price of one adult ticket
y be the price of one student ticket
According to given statement;
12x+7y=124 Eqn 1
x+3y=20 Eqn 2
Multiplying Eqn 2 by 12
12(x+3y=20)
12x+36y=240 Eqn 3
Subtracting Eqn 1 from Eqn 3
(12x+36y)-(12x+7y)=240-124
12x+36y-12x-7y=116
29y=116
Dividing both sides by 29
Putting y=4 in Eqn 2
x+3(4)=20
x+12=20
x=20-12
x=8
Hence,
The cost of one adult ticket is $8 and cost of one student ticket is $4.
The coefficient of determination is calculated as: 0.520.
<h3>How to Find the Coefficient of Determination?</h3>
The coefficient of determination = the square of the correlation coefficient.
Given the following:
Value of the linear correlation coefficient (r) = -0.721
Therefore, we would have:
The coefficient of determination = (-0.721)²
The coefficient of determination = 0.520
Learn more about coefficient of determination on:
brainly.com/question/17237825
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