A number to the 12th power divided by the same number to the 9th power equals 512. What is the number?

What graph correctly matches the equation y equals two negative x

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

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?