Answer:
A rational number is any integer, fraction, terminating decimal, or repeating decimal.
Step-by-step explanation:
Terminating decimal is a fraction whose decimal representation contains a finite number of digits.
0.75 as a fraction is 3/4 because 3 / 4 is .75
Sin(x) = cos(90-x) , so the answer is 0.83 * 0.55