Simplify.
A. -1
B. 
C. 1
D. 
Answer: B
Mathematics
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Solve the problem.Find the center of mass of the region of density 
bounded by the paraboloid 
and the xy-plane.
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 10
D. 
= 0, 
= 0, 
= 5
Mathematics
Graph the pair of parametric equations with the aid of a graphing calculator.x = 6 cos t + 2 cos 3t, y = 6 sin t - 2 sin3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Mathematics
Find the product.(3m4)(2m4)
A. 6m8 B. 6m C. -6m8 D. -6m
Mathematics
Provide an appropriate response.Let P be a 3 × 3 matrix that has a multiplicative inverse. Which of the following statements are false? (Let 0 represent the 3 × 3 zero matrix.)(i) 0 ? P = 0(ii) PP-1 = 0(iii) P-1P = I3(iv) PP-1 = P
A. (ii) B. (i), (iii) C. (iv) D. (ii), (iv)
Mathematics