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Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?