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The area of a circle is given by (pi k squared minus twelve pi k plus 36 pie) square inches. What is the radius of the circle? How do I solve f(x+3) when f(x) = 4-x^2? It's about moment generating problem. Help me to solve this problem please? When we look at the stars are we seeing what they looked like years ago? And how many years ago is it? What's popular in longview tx?