Find the solution set of the system.
?
?
A. ?
B. ?
C. ?
D. ?
Answer: D
Mathematics
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Find the curvature of the curve r(t).r(t) = (3 + cos 7t - sin 7t)i + (9 + sin 7t + cos 7t)j + 2k
A. ? = 
B. ? = 
C. ? = 
D. ? = 
Mathematics
Complete the square and write the equation in standard form. Then give the center and radius of the circle.x2 + y2 + 6x + 8y + 25 = 16
A. (x + 4)2 + (y + 3)2 = 16 (-4, -3), r = 4 B. (x + 3)2 + (y + 4)2 = 16 (3, 4), r = 16 C. (x + 4)2 + (y + 3)2 = 16 (4, 3), r = 16 D. (x + 3)2 + (y + 4)2 = 16 (-3, -4), r = 4
Mathematics
Write as a fraction or as a mixed number20%
A. 
B. 2
C. 
D. 
Mathematics
Use the graph of the rational function to solve the indicated inequality.R(x) > 0
A. (-?, -2] ? [2, ?) B. (-2, ?) C. (-?, -2) D. (-?, -2) ? (2, ?)
Mathematics