What does a barcode reader emit to identify bar codes?
a.
electric pulse
b. magnetic pulse
sound
d.
e.
light
electromagnetic pulse

Which action describes an aspect of technological design?

Which of these options are the correct sequence of actions for content to be copied and pasted? select content, click the copy button, click the paste button, and move the insertion point to where the content needs to be inserted. click the copy button, select the content, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, click the copy button, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, move the insertion point to where the content needs to be inserted, click the copy button, and click the paste button.

The blank button automatically displays next to the data when you select a range of numeric data which is an available option for creating a chart