Evaluate or simplify the given expression.cos-1 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: cone x2 + y2 - z2 = 0 between z = 1 and z = 4Density: constant
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B. 
C. 
D. 
Mathematics
Determine if the sequence is geometric. If the sequence is geometric, find the common ratio.12, 6, 3, 1.5, 0.75, . . .
A. no B. yes, 0.5 C. yes, 0.75 D. yes, 2
Mathematics
Apply the distributive property.(x + y - 2)(-7xy)
A. 7x2y - 7xy2 +14xy B. -7x2y + 7xy2 +14xy C. -7x2y - 7xy2 +14x2y2 D. -7x2y - 7xy2 +14xy
Mathematics
Find the equation of the quadratic function that has the given vertex and given point on its graph.Vertex: (-2, -3) through: (-5, 24)
A. P(x) = -3x2 + 12x + 3 B. P(x) = 3x2 + 12x + 9 C. P(x) = 3x2 + 2x + 3 D. P(x) = -5x2 - 12x - 9
Mathematics