Write the standard equation of a circle that passes through (−4, 0) with center (−1, −4).

(x – 1)2 + (y – 4)2 = 25

(x – 4)2 + y2 = 25

(x + 4)2 + y2 = 25

(x + 1)2 + (y + 4)2 = 25

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?