Top answers

What is the difference between the present perfect and the imperfect?

Present Perfect Finished past action: Il a cuisiné. An action which lasted a certain amount of time: Elle a étudié au lycée pendant trois ans. An action which has been repeated several times: Il a sonné quat...
EM
Answered by Esther M. • French tutor
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What are the two auxiliary verbs in Italian grammar?

They are "essere" (to be) and "avere" (to have).
FM
Answered by Francesco M. • Italian tutor
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What is the definition of demand?

Demand is the willingness or ability of a consumer to purchase something, at a certain price, at a certain time.
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how do you convert binary to a form in which you can perform subtraction?

You can use a common method involving 1's compliment, in which the binary number is inverted and then added, which overall gives subtraction. E.g. 8+3 =>> 8 10 = 1000 2 and 3 10 = 0011 2 . 1's complime...
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Answered by Thomas G. • Computing tutor
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From June 2015 Edexcel paper: Solve 7x + 8 = 2x – 3

Whenever you have a question asking you to solve an algebraic equation with only one unknown (x) you must put all 'x' terms on one side of the equation and all non-'x' terms on the other: 1. Take 2x away fro...
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Answered by John J. • Maths tutor
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