Answer:
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Step-by-step explanation:
0.8 i think I’m not sure .
1. 5/16
2. 1/3
3. 3/20
4. 38
5. 3/4
6. 6
Let
cos x=7/18
x=arc cos (7/18)-----> using a calculator-------> x=67.11°-----> x=1.17 radians
the answer is
x=67.11° or x=1.17 radians