Use the quadratic formula to solve x^2-4x+3. show your work. then describe the solution

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

Plz hurry evaluate the expression a+b where a=8 and b=19

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?