-2x=-4 or x=2
2x =-4 or x=-2
1. S.S.A
2.S.A.A
3. That looks like the same question as two I can't quite see it.
Answer:
The answer would be 1 ft 9 in
Step-by-step explanation:
Answer:
Step-by-step explanation:
Tan can be defined as: 
as it simplifies to opposite/adjacent. If you know a bit about the unit circle, you'll know that the x-coordinate is going to be cos(theta) and the y-coordinate is going to be sin(theta). Since the sin(theta) is defined as opposite/hypotenuse, and the hypotenuse = 1, so sin(theta) is defined as the opposite side, which is the y-axis. Same thing goes for cos(theta), except the adjacent side is the x-axis.
Using this we can define tan
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