Find the equation of a circle with a center at 7, 2) and a point on the circle at (-2,-5).
• ( x-7)+( y-2 * = 5/130
©( x+7 ) -(y+2 ) = 130
( x-7) +(y-2 y = 130
0 ( x+7 )2-(y+2 )* = 130
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1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?