The graph represents the 24-hour day of a small-business owner.
How many hours of the day are spent in work, worry, and travel?
A. 12 hours
B. 16 hours
C. 15 hours
D. 14 hours
Answer: C
Mathematics
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Find the indicated vector.Let u = 
. Find 3u.
A. 
B. 
C. 
D. 
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Find the exact value of the real number y.y = sin-1 
A. 
B. 
C. 
D. 
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Solve.On a map, 1 in. represents 120 miles. How much does 
in. represent?
A. 72 mi B. 62 mi C. 200 mi D. 82 mi
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Express the sum or difference as a product of sines and/or cosines.sin 
+ sin 
A. 2 cos(7?) sin ?
B. 2 sin(7?)
C. 2 sin 
sin ?
D. 2 sin 
cos ?
Mathematics