These users also state that being part of an activity that is at high risk for injuries shouldnât automatically make that activity a sport. According to Thetoptens.com though, cheerleading is ranked number two on the top ten most dangerous sports. In the info graphic below, you can see that cheerleading is ranked right below football when it comes to total catastrophic injuries from 1982-2008 (AACCA.org).
What is a 7Z file? Files with the .7z extension are very similar to Zip files. These files are compressed archive files, usually created by the 7-Zip file archive utility. 7Z files can make it easier to send files and folders over email and the Web. The 7Z file format also makes it easier to download files from the Web due to the reduced file size.
Take the equation 7x = 0. Based on the zero product property, either 7 = 0 or x = 0. It is known that 7 cannot equal zero, therefore, x must equal zero. Now look at the equation xyz = 0. Even though there are three variables, you can separate the expression on the left side of the equation into two expressions.