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Place the following numbers in order `a=lg2-lg20` , `b=3C2-4C2` , c=`-root...

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greenbel | Honors

Posted June 30, 2013 at 5:06 PM via web

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Place the following numbers in order `a=lg2-lg20` , `b=3C2-4C2` , c=`-root (3)(4root2(4))` ?

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justaguide | College Teacher | (Level 2) Distinguished Educator

Posted June 30, 2013 at 5:35 PM (Answer #1)

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The number `a = log 2 - log 20 = log(2/20) = log(1/10) = -1`

`b = C(3,2) - C(4,2) = 3 - 6 = -3`

c = `-root(3)(4*sqrt 4)` `= -root(3)(4*2) = -root(3) 8 = -2`

Looking at the value of a, b and c, the numbers in increasing order of value are b , c , a

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