Answer:
84+36=120
180-120= 60
90-60=30
30+86=116
180-116=64
? =64
64 degrees
Step-by-step explanation:
so... since where the triangles join is a right angle you should
1. work out the third angle of the bottom triangle
180 - 84 -36 = 60
2. since a right angle is 90..
90-60 = 30
3. which means the top triagnles angle is 30 degrees
4. 180 -86 - 30
= 64
I think it would be “B”
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Given
Function is
from (i) and (ii) we get
common ratio=18/-3=-108/18=-6, a=-3
sn=a(r^n-1)(r-1)
sn=-3((-6)^n-1)(-6-1)
sn=-3(-6)^8-1)/(-7)
s8=-3(1679615)/(-7)
s8=719836
