Change the polar coordinates (r, ?) to rectangular coordinates (x, y).(3, 270°)
A. (0, -3)
B. (0, 3)
C. (-3, 0)
D. (3, 0)
Answer: A
Mathematics
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Solve the problem.Find the moment of inertia about the x-axis of a thin plane of constant density 
bounded by the coordinate axes and the line 
.
A. 252
B. 294
C. 
D. 343
Mathematics
Find the domain of x in the expression.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = sin u, u = 4x + 19
A. - 4 cos (4x + 19) B. - cos (4x + 19) C. 4 cos (4x + 19) D. cos (4x + 19)
Mathematics
Find the indicated term.Find the 16th term of the arithmetic sequence 
A. 39 B. -51 C. 42 D. 45
Mathematics