The graph of the equatic function y+ -x^2- 2x + 3 is shown below. which statements about the graph are true? select all that apply

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.

The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.