Use the completed X diagram to replace the x-term in the trinomial with two x-terms. x2 + x – 42 = x2 + ? -42 Next, use double grouping to factor the four terms. = x(?)–(x + 7) = ? To verify, ? the factors

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?