Answer:
See below
Step-by-step explanation:
You could leave 47:3 as the improper fraction
or the mixed number
.
Answer:
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Step-by-step explanation:

That equation just equals ln(e^(-4/3)) which can be simplified to -4/3 because ln and e cancel each other out only leaving the power
Answer: 90 degrees
Step-by-step explanation:
Complementary angles add up to 90 degrees. Since a triangle has 180 degrees total, the other angle is 90 degrees