segment ab has point a located at (4,2). if the distance from a to b is 3 units, which of the following could be used to calculate the coordinates from point b?

I've never been good at math he told he loves but he keeps cheating on me, so it ain't adding up sis

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?

16x^2-16x=5 solve the equation by completing the square