How can an apple ios device install an app that is downloaded from a source other than the apple app store?

What type of slide show is a dynamic and eye-catching way to familiarize potential customers with what your company has to offer? a. ole b. photo album c. brochure d. office clipboard

Match the function to its purpose. fast worth 50pts.

Afile named data.txt contains an unknown number of lines, each consisting of a single integer. write some code that creates two files, dataplus.txt and dataminus.txt, and copies all the lines of data1.txt that have positive integers to dataplus.txt, and all the lines of data1.txt that have negative integers to dataminus.txt. zeros are not copied anywhere.