What is the circumference of a circle whose radius is 20 feet?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?

Rewrite the expression in z to the n power. the expression i was given is: 1 over z to the negative 1 half power.