Shelby drew a map of the Appalachian trail. The scale was 5 centimeters represents 400 kilometers. The map shows the Appalachian trail to be 43.75 centimeters. What is the actual length of the Appalachian Trail?

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?

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