Solve the problem.The motion of a spring-mass system is described by the equation 
where y is the distance in feet from the equilibrium position and t is time in seconds. If the weight is 22 feet from the ceiling in a state of equilibrium, find the distance from the ceiling at time t = 2.
A. 20 ft
B. 22 ft
C. 16 ft
D. 18 ft
Answer: D
Mathematics
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Combine the complex numbers.(2 + 
) + (5 - 
)
A. 7 + 6
i
B. 7 - 6
i
C. 7 + 6
D. 7 - 6
Mathematics
Classify the triangle as acute, right, or obtuse and classify it as equilateral, isosceles, or scalene.
A. Obtuse, equilateral B. Acute, equilateral C. Acute, scalene D. Obtuse, isosceles
Mathematics
Evaluate the algebraic expression for the indicated variable.
+ c for a = -6, b = 1, c = 14
A. 93 B. 33 C. -121 D. 121
Mathematics
Simplify. – (–d)
A) – d B) d C) –2d D) 0 E) 2d
Mathematics