Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: "nose" of the paraboloid x2 + y2 = 2z cut by the plane z = 6Density: ? = 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Determine ? in decimal degrees, 0° ? ? ? 90°. Round results to an appropriate number of significant digits.sec ? = 2.9
A. 70.0° B. 71° C. 71.0° D. 70°
Mathematics
Convert as indicated.0.4 m to millimeters
A. 0.0004 mm B. 40 mm C. 4000 mm D. 400 mm
Mathematics
The table shown was generated by a graphics calculator. The expression y1 represents f(x).
If f(x) = -7, then x = ?
A. 0 B. 2 C. -2 D. Cannot be determined
Mathematics
Solve the problem.A projectile is thrown upward so that its distance above the ground after t seconds is 
After how many seconds does it reach its maximum height?
A. 27 s B. 9 s C. 18 s D. 36 s
Mathematics