If the terminal ray of an angle passes through (-5, -3), that means it passes through x coordinate -5 and y coordinate -3. Both x and y are negative in only one quadrant and that is the third one. If we plot the point (-5, -3) in the coordinate plane in Q3, and then draw a vertical line to connect that point to the negative x axis and then draw a line to connect that point to the origin, what we have created is right triangle with a base of -5 and a height of -3. The tangent ratio relates the side opposite the reference angle to the side adjacent to the reference angle. We have both of those measures already and do not have a need for the length of the hypotenuse since the tangent ratio doesn't use it. The tangent of the reference angle is -3/-5 which is 3/5.
<em>n = 4</em>
- <em>Step-by-step explanation:</em>
<em>Hi there !</em>
<em>²⁾2n + n/2 = ²⁾10</em>
<em>4n + n = 20</em>
<em>5n = 20</em>
<em>n = 20 : 5</em>
<em>n = 4</em>
<em>Good luck !</em>
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