15 minutes is 25% of an hour. You can tell this because there are exactly 4 15 minute periods in one hour.
Hope this helped.
Answer:
pi/2
Step-by-step explanation:
Arccos(tan(0))
Arccos( 0) since tan(0)=0
Arccos(0)=pi/2 since cos(pi/2)=0 and the restricted domain of cosine is [0,pi].
355,000 would be the right answer. the 6 behind the 4 is the factor true. like if it was a 4 it would be 354,000
