(2x+15) +x=90
- 15 = -15
2x+x= 75
3x= 75
3 = 3
x= 25
Answer:
See below.
Step-by-step explanation:
The law of sines is usually written as a / sin A = b / sin b == c / sin C where a is the side opposite angle A ,etc.
The first equation is true because it is obtained by cross multiplying
a / sin A = b / sin B, therefore b sin A = a sin B.
The second one is not true.
The third and fourth are both true.
Answer:
a round plane figure whose boundary (the circumference) consists of points equidistant from a fixed point (the center).
Step-by-step explana
