ANSWER

EXPLANATION
The given function is

This function is defined for values where the denominator is not equal to zero.


The domain is

Or

M∠BDC=half the arc it faces=1/2 of 54=27
BD is the diameter, so m∠C=90
m∠DBC=180-90-27=63
Answer:
Step-by-step explanation:
Multiply both 711.9 and 8.4 by 10 which will remove the decimal point.
and make the calculation much more easier
the required answer would be 84.75