Write the standard form of the equation of the circle with radius r and center (h, k).r = 4; (h, k) = (10, 6)

A. (x - 10)2 + (y - 6)2 = 4
B. (x - 10)2 + (y - 6)2 = 16
C. (x + 10)2 + (y + 6)2 = 16
D. (x + 10)2 + (y + 6)2 = 4


Answer: B

Mathematics

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A.
B.
C.
D.
E.

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Translate the problem to a system of equations, then solve using matrices.Anne and Nancy use a metal alloy that is 17.32% copper to make jewelry. How many ounces of a 11% alloy must be mixed with a 23% alloy to form 150 ounces of the desired alloy?

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