2. Which of the following is a shortcut key to Exit from any operation? a) Ctrl+R
b) Ctrl+Q
c) Ciri-Y
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Ajeweler designing a pin has decided to use five stones chosen from diamonds, rubies, and emeralds. in how many ways can the stones be selected?

What’s resistance in an electrical circuit ?

What statement best describes operating systems? it’s possible for modern computers to function without operating systems. most operating systems are free or very inexpensive. operating systems are managed by the computer’s microprocessor (cpu). operating systems manage the computer’s random access memory (ram).