ABC is a straight line and angle CBD is 116
1 answer:
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Answer:
Step-by-step explanation:
The formula for cos θ is a/r. A is the first number (10) and b is the second number (6). R is the hypoteneuse which can be found through r = .
In the equation you'd write that as r = which can be simplified to
.
You end up with and you simplify this by doing
, ending with the result of
.
(I also got this answer right on the test.)