Because you are a couple days ago from a local number of other people. it also provides an easy task, you will need the following weekend and the new one.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

How do you solve a question like this?

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.