Solve the problem.The vertical displacement y (in ft) of a water wave was determined to be 
where t is the time (in s). Find the velocity for 
A. 23 ft/s
B. -1.6 ft/s
C. 3.7 ft/s
D. 1.7 ft/s
Answer: C
Mathematics
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Find the gross earnings. Use the overtime premium method. Overtime is paid at time-and-a-half for all hours over 40.
A. $685.52 B. $765.88 C. $1,028.28 D. $763.88
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Determine whether the relation is a function.{(-7, 3), (-7, -4), (2, -4), (5, -5), (10, 9)}
A. No B. Yes
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Write in standard (decimal) form.5.537 × 10-5
A. 0.000005537 B. 0.0005537 C. 0.00005537 D. -553,700
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Determine the constant term that must be added to the expression to make it a perfect square.x2 + 
x
A. 
B. 
C. 
D. 
Mathematics