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 18 feet from the ceiling in a state of equilibrium, find the starting position of the weight 
A. 12 ft
B. 6 ft
C. 36 ft
D. 18 ft
Answer: B
Mathematics
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The problem tells by what factor and direction the graph of the given function is to be stretched or compressed. Give an equation for the stretched or compressed graph.y = x2 + 1
compressed vertically by a factor of 2
A. y = 
+ 
B. y = 
+ 1
C. y = 4x2 + 1
D. y = 2x2 + 2
Mathematics
Factor the four-term polynomial by grouping.15x4 - 10x2 + 6x2 - 4
A. (5x4 + 2)(3x - 2) B. (5x2 + 2)(3x2 - 2) C. (15x2 - 2)(x2 + 2) D. (5x2 - 2)(3x2 + 2)
Mathematics
Translate to an algebraic expression.Leanne had $32 remaining after paying x dollars for a dinner and a movie. How much did she have at the start of the evening?
A. x - $32 B. $32 - x C. $32 + x D. $32x
Mathematics
Compute, rounding to the nearest tenth.790 ÷ 25.0
A. 32.6 B. 316.0 C. 3.2 D. 31.6
Mathematics