To help ensure that an HTML document renders well in many different web browsers, it is important to include which of the following at the top of the file.

A) an tag
B) a doctype declaration
C) a tag
D) a tag

Use a software program or a graphing utility with matrix capabilities to solve the system of linear equations using an inverse matrix. x1 + 2x2 − x3 + 3x4 − x5 = 6 x1 − 3x2 + x3 + 2x4 − x5 = −6 2x1 + x2 + x3 − 3x4 + x5 = 3 x1 − x2 + 2x3 + x4 − x5 = −3 2x1 + x2 − x3 + 2x4 + x5 = 5

What is a sketch or blueprint of a web page that shows the structure (but not the detailed design) of basic page elements such as the logo, navigation, content, and footer?

If the average computer chip had 1,200 transistors per square inch in 1970, approximately how many transistors per square inch would one have in 1976? use moore's law to calculate your answer