Question

In order to design an appropriate touchscreen for a computer. the manufacturer has to consider the average size of the fingers and hands that will be touching the screen. One lab found that the average width of th index (or pointing) finger for adults is from 1.6 cm to 2 cm wide. These measurements are inclusive. Explain what this means about which inequality symbols should be used.​

Answer 1

To determine the appropriate touchscreen size for a computer, the manufacturer must consider the average width of the fingers. The average width of the index finger for adults is between 1.6 cm and 2 cm, inclusive. This information can be represented using the inequality symbols >= 1.6 cm and <= 2 cm.

Step-by-step explanation:

The manufacturer should consider the average size of the fingers and hands that will be touching the screen when designing a touchscreen for a computer. The lab found that the average width of the index finger is from 1.6 cm to 2 cm wide, inclusive. This means that the manufacturer should use the inequality symbols >= 1.6 cm and <= 2 cm to represent the average finger width.