- The sun is a what sized star?

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A relation ~ is defined on the set Z by the rule x~y if and only if x-y is a multiple of 4. Prove the relation ~ is reflexive and symmetric? Find x on right triangle.? The joint distribution of the random variables What is the value of :210.0/2.0?keep in mind the rules of significant digits.? Hiddndkkdkd djdjdb jdjdbd?