Solve the problem.It took three assembly-line workers 4.21 seconds, 5.882 seconds, and 4.5 seconds to assemble a product. How many seconds in all did they work?
A. 14.592 sec
B. 8.71 sec
C. 10.092 sec
D. 6.172 sec
Answer: A
Mathematics
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Solve the problem.The shape and density of a thin shell are indicated below. Find the moment of inertia about the z-axis.Shell: upper hemisphere of x2 + y2 + z2 = 9 cut by the plane z = 0Density: ? = 3
A. Iz = 324?
B. Iz = 27?
C. Iz = 
?
D. Iz = 162?
Mathematics
Find a so that the statement is true.
A. 8 B. 0 C. 7 D. 5 E. 6
Mathematics
Find the x- and y-intercepts of the graph of the given equation, if they exist. Then graph the equation.-4x - 20y = 20
A. x: -5; y: -1 
B. x: -1; y: -5 
C. x: 5; y: -1
D. x: -1; y: 5
Mathematics
Answer the question or write an explanation.Is the origin a good test point in graphing an inequality of the form Ax + By < 0? Why or Why not?
What will be an ideal response?
Mathematics