The life of a Radio Shack record player is normally distributed with a mean of 3 years and a standard deviation of 1.1 years. Radio Shack guarantees its record players for 2 years. Round your answer to the nearest tenth of a percent.

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?