11:45 ---> 01:20
11:45 + (00:15 + 01:00 + 00:20)
= 01:20
So your answer is:
01:35 which is 1 hr, 35 mins.
It's the fourth option, 1 - sin<em>θ</em>/csc<em>θ</em>. This is due to the cancellation of cos<em>θ</em> in the numerator:
1 - (sin<em>θ</em>/cos<em>θ</em> × cos<em>θ</em>)/csc<em>θ</em> = 1 - sin<em>θ</em>/csc<em>θ</em>
Answer: 5 pieces
Step-by-step explanation:
It will take the orchestra 12 minutes to play one piece, and since there are 60 minutes in one hour, we have the following equation:
60/12= 5 pieces in one hour.
2 divided by 1/3 equals 6