okay so the question I was asked was "a dolphin is swimming 18 ft below the surface of the ocean there is a Coast guard helicopter 75.5 ft above the surface of the water that is directly above the dolphin what is the distance between a dolphin and a helicopter." other say that the correct answer is 93.5 and I'm a little confused or how they got 93.5.

Factor this polynomial completely x^2-64

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?

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.