Find an equation for the circle.Endpoints of a diameter (-4, 3), (2, -7)
A. (x + 1)2 + y2 = 25
B. (x + 1)2 + (y + 2)2 = 34
C. x2 + (y + 2)2 = 9
D. (x + 2)2 + (y + 1)2 = 34
Answer: B
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A. Commutative property of multiplication B. Commutative property of addition C. Associative property of addition D. Associative property of multiplication
Factor by grouping.20a3 - 24a2b - 25ab2 + 30b3
A. (4a2 - 5b)(5a - 6b) B. (4a2 + 5b2)(5a + 6b) C. (20a2 - 5b2)(a - 6b) D. (4a2 - 5b2)(5a - 6b)
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A. 
B. 
C. 
D. 
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A. 28.5 g B. 1026 g C. 39.5 g D. 38.5 g