Suppose we have relation r(a, b,c, d,e), with some set of fd'sand we wish to project those fd's onto relation s(a, b,c). give thefd's that hold in s if the fd's for r are:
a)ab--> de, c--> e, d--> c, and e--> a
b)a--> d, bd--> e, ac--> e and de--> b
c)ab--> d, ac--> e, bc--> d, d--> a and e--> b
d) a--> b , b--> c, c--> d, d--> e and e--> a

Which function key is used to enable the spelling & grammar function in a word processing program such as microsoft word?

Write the html code to make a link out of the text “all about puppies”. it should link to a pdf called “puppies.pdf” inside the “documents” folder. the pdf should open in a new window.

This chapter lists many ways in which becoming computer literate is beneficial. think about what your life will be like once you’re started in your career. what areas of computing will be most important for you to understand? how would an understanding of computer hardware and software you in working from home, working with groups in other countries and contributing your talents.