Specify the center and radius of the circle.5x2 + 5y2 + 20x + 30y - 15 = 0
A. center: (2, 3); radius: 16
B. center: (-2, -3); radius: 4
C. center: (-3, -2); radius: 4
D. center: (3, 2); radius: 16
Answer: B
Mathematics
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Provide an appropriate response.How long of a bolt is needed to fasten two pieces of metal each 
inches thick if a 
inch thick nut is used? The nut must be flush with the bolt after tightening.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the circumference of the figure below
Mathematics
Find the real solutions of the equation.x + 
= 20
A. {5} B. {16} C. {25} D. {4}
Mathematics
Factor.t2 + 0.2t - 0.24
A. (t + 0.6)(t - 0.4) B. (t + 0.24)(t - 1) C. (t - 0.6)(t + 0.4) D. (t + 0.1)2
Mathematics