Add.-22 + (-18)
A. 4
B. -4
C. 40
D. -40
Answer: D
Mathematics
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Find the center and the radius of the circle.x2 + y2 - 4x - 8y + 11 = 0
A. (-2, -4); r = 3 B. (2, -4); r = 3 C. (2, 4); r = 3 D. (-2, 4); r = 3
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Identify the numbers from the given list that belong to the indicated set. 19, 
, -10, 0, 
, 
, 0.91, 0.
Irrational numbers
A. 
, 
B. 
C. 
, 0.
D. 
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Determine whether the sequence is geometric.an = 5n/2
A. Geometric B. Not geometric
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Find the exact solutions to the quadratic equation, using a method of your choice.x2 + x + 6 = 0
A. - 
± i
B. 
± i
C. - 
± 
D. 
± 
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