180-129= 51
angle 4 is equal to angle 12 so missing angle 12= 51°
Answer:

There are two best ways to solve this.
using cosine method:




using sine method:




There are many ways, not to make it complex, these are the best ways to solve for n. Hope it helps ~
Answer:
Step-by-step explanation:
8.517 in written form is:
Eight and five hundred seventeen thousandth
8.517 in expanded form is:
8 + 0.5 + 0.01 + 0.007
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8.a)
A= (1,1) A’= (3,3)
B= (4,6) B’= (12,18)
C= (6,1). C= (18,3)
8b.)
A= (1,1) A’(0,5,0.5)
B= (4,6) B(2,3)
C= (6,1). C(3,0.5)
Hope this helped ! :)