Angle a is 132 degrees
5x-18=3x+42
2x-18=42
2x=60
x=30
then plug 30 in the equation for angle a
5*30-18
150-18
132
It is at position B, there is the solar system
Fifth term / second term = a1r^4 / a1r = r^3 = 768 / -12 = -64
so r = -4 and first term a1 = -12/-4 = 3
answer is 3*(-4)^(n-1)
Its C
Answer:
12
Step-by-step explanation:
The sum of any two sides of a triangle must be greater than the third side.
15 i think hope i could help