Cos(60) = cos(90 - 30) = sin(30) = 1/2
This should be what you want.
He pays $780 for the television set.
1200*.35=420
1200-420=780
Part A: 7/10 because .7 represents 70/100 of a whole, or 7/10.
Part B: I think 1 and 89/100 because 89/100 represents that fraction
These are my answers, so I may be wrong.
Hope I helped, and good luck!
Answer:
The answer is stratified.
Step-by-step explanation: