For the parabola y=3x^2-6x+8 identify a and b

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74