Find the exact value of the expression.cos-1 
A. 
B. 
C. 
D. 
Answer: D
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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. Find the velocity of the mass at time t = 3/4 seconds. Is the mass moving toward or away from its equilibrium position or neither?
A. 0 ft/s; away from equilibrium position B. -4? ft/s; toward from equilibrium position C. 0 ft/s; neither D. 4? ft/s; away from equilibrium position
Use the prime factorization method to find the LCM of the variable expressions.2xy2 and x3y
A. 5x3y2 B. 4x2y3 C. 2x3y2 D. 4x3y2
Find the coordinates of the vertex and the intercepts of the quadratic function. When necessary, approximate the x-intercepts to the nearest tenth.g(x) = 2x2 + 20x + 46
A. V(5, -4); I(0, -46); (-7, 0); (-3, 0) B. V(20, 46); I(0, -46); (-10, 0); (10, 0) C. V(-10,-4); I(0, 46); (3.6, 0); (6.4, 0) D. V(-5, -4); I(0, 46); (-6.4, 0); (-3.6, 0)
Determine whether the graph shown is the graph of a polynomial function.
A. polynomial function B. not a polynomial function