Identification Of friendly and hostile aircraft
If and only if (necessary and sufficient condition).
We havey = 2x + 1 = 2(4y-2) + 1 = 8y - 3 iff 7y = 3 iff y = 3/7 iff x = 4y - 2 = 12/7 - 2 = -2/7(using "iff" for the double-arrow "is equivalent to" symbol which my PC won't copy).Thus xy = (-2/7)(3/7) = -6/7.
you write both of the modes as your answer
The question is "How old are Jack and Larry?" I assume. Let Jack's age be J years and Larry's age be L years. The first part of the question tells us that 6J + 5L = 63. The second part tells us that J = 3L - 1. Thus 6J + 5L = 63 iff 6(3L-1) + 5L = 63 iff 18L - 6 + 5L = 63 iff 23L = 69 iff L = 3 iff J = 3L - 1 = 3x3 - 1 = 8 (using "iff" for the "is equivalent to" symbol). So Jack is 8 years old and Larry is 3 years old.
the statement IFF means "if and only if"
if is an expression, while iff is a function often with multiple choices.
Roger Iff has written: 'Besteuerung von Versicherungsleistungen und Bankprodukten' -- subject(s): Taxation, Law and legislation, Pensions
There are 2 syllables. Bail-iff.
Identification Of friendly and hostile aircraft
No i dont think so only iff you contact binweevils and you would probebly have to be an adult and only iff youv'e never been kicked or banned!!
And how would we know iff they was stranded on remote isles, iff we knew about it, they would not be stranded because we would off rescued them.
well iff u dont have your mp3 packet any more u can serch online but iff u have it of a fashion pack there will be a code somewhere on that
With most military aircraft moving as fast as they do there needs to be a system where you can tell who is on your side - friend - and who is on the other side - foe. An IFF beacon Identifies who is Friend or Foe.
what iff a gril hits you hard
iff the coast of new england
If and only if (necessary and sufficient condition).