Solve and simplify.m + 
= - 
A. m = - 
B. m = 
C. m = - 
D. m = - 
Answer: C
Mathematics
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Solve the problem.
A radio telescope has a parabolic surface. If it is 1 m deep and 8 m wide, how far is the focus from the vertex?
A. 4 m B. 16 m C. 2 m D. 1 m
Mathematics
Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire that lies along the first-quadrant portion of the circle 
if the density of the wire is 
A. 
= 
, 
= 
B. 
= 1, 
= 1
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Find the distance between the pair of points. Give your answer in exact form and where appropriate find an approximation to three decimal places.(3, -2) and (7, -4)
A. 12
? 20.785
B. 6
C. 2
? 4.472
D. 12
Mathematics
Find A-1 without a calculator.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
Mathematics