Answer:
sin trigonometry ratio
Step-by-step explanation:
Given
See attachment for triangles
Required
Explain why 
From the attached diagram, both triangles are similar triangles because
(1) the second triangle is a dilation of the first triangle by a ratio of 1.5
i.e


(2) They have angle 30 degrees, and have their right angles located at the same point
In the first triangle, the sine of 30 degrees is represented as:

This gives:

In the second triangle:

So:

By comparison:

Hence:

Step-by-step explanation:

x = 4 makes the expression undefined.
Because at x = 4 denominator becomes zero, which makes the expression undefined.
The domain of the relation shown in the graph is -4 <= x <= 4
<h3>How to determine the domain of the relation shown in the graph?</h3>
The complete question is added as an attachment
The relation on the graph is an ellipse function.
The domain is the set of x values the function can take
From the graph, we have the following x values
- Minimum x value = -4
- Maximum x value = 4
This means that the domain of x in the graph is -4 <= x <= 4
Hence, the domain of the relation shown in the graph is -4 <= x <= 4
Read more about domain at:
brainly.com/question/1770447
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The correct answers are :
x + y = -1
x + 4y = 0
8x - 3y = 20
Answer:
21
Step-by-step explanation:
21 and 27
You are only given an option of 21, so take it.