Ageometric sequence has a first term of 4 and a second term of 12.
what is the common ratio ?

If chord ab is congruent to chord cd, then what must be true about ef and eg?

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?

Tan198=asin164=? how to solve this? ?