The displacement from equilibrium of an oscillating weight suspended by a spring is given by
, where y is the displacement (in feet) and t is the time (in seconds). Find
the displacements when 
. (Round your answers to two decimal places.)
?
A. 
foot
B. 
foot
C. 
foot
D. 
foot
E. 
foot
Answer: A
Mathematics
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Evaluate the integral.
A. - 
?i + 
j + 
k
B. 
i + 
j - 
k
C. 
j + 
k
D. - 
?i + 
j + 
k
Mathematics
Solve the problem.If a rocket is propelled upward from ground level, its height in meters after t seconds is given by 
During what interval of time will the rocket be higher than 343 m?
A. 5 < t < 7 B. 7 < t < 10 C. 0 < t < 5 D. 10 < t < 12
Mathematics
Divide.
A. - 
B. 28
C. -28
D. -38
Mathematics
Find the x- and y-intercepts. Then graph the equation.4x = 20y
A. (0, 0); (0, 0)
B. (0, 0); (0, 0)
C. (0, 0); (0, 0)
D. (0, 0); (0, 0)
Mathematics