Astudy found that after a meal, a woman can tell whether a man is warm or cold by looking at his face. the study involved 40 undergraduate who were asked to guess the body temperature of 80 men based on photos of their face. half of the men were warm, and the other half were cold. all held similar expressions in the photos. all of the women had eaten the same meal at the time of the test. the result was that the closer a woman was to her last meal, the more accurate her guess.

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?

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?

Arock was dropped from the top of a building. the function that describes the height after it was dropped is f(x)=64-16x^2. what are the zeros of the function and what do they mean?