Answer:
10
Step-by-step explanation:
0.4*25
9.7
tan=opposite/adjacent
tan=9/adjacent
tan 43=9/x
x tan 43=9
0.9325x=9
0.9325x/0.9325=9/0.9325
=9.65
hence;
x=9.7
n = 23
-8 + n = 15
-8 + n + 8 = 15 + 8
Answer: n = 23
