for all positive integers T, T*=3T when T is odd and T*=1/2T when T is even. Which of the following is equivalent to to 9*x6*
81
54
36
27
18
I chose 81 , why is it wrong??
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answer wrong?-T*=3T
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Ian Stewart
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I think I remember this question...
As I recall, the answer choices are not as you've written them. They should be:
81*
54*
36*
27*
18*
Notice that each answer choice has the * function applied to it: choice A is not equal to 81!
As I recall, the answer choices are not as you've written them. They should be:
81*
54*
36*
27*
18*
Notice that each answer choice has the * function applied to it: choice A is not equal to 81!
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beeparoo
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Baba, your mistake is here:
...when T is odd and T*=(1/2)T
It's not your fault though because the question stem is typed in an ambiguous way. For correctness, re-read as such:babachal wrote:6*=1/12
...when T is odd and T*=(1/2)T
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AleksandrM
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Hey,
9* x 6* = 56* = 56(1/2) = 27.
However,
9* = 3(9) = 27
6* = 6(1/2) = 3
27 x 3 = 81
And,
27* = 27(3) = 81
Are these all the same?
9* x 6* = 56* = 56(1/2) = 27.
However,
9* = 3(9) = 27
6* = 6(1/2) = 3
27 x 3 = 81
And,
27* = 27(3) = 81
Are these all the same?
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beeparoo
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AleksandrM wrote:Hey,
9* x 6* = 56* (<-- This does not satisfy the question requirements, so it's incorrect.)
= 56(1/2) = 27.
However,
Everything after this point is GOOD.
9* = 3(9) = 27
6* = 6(1/2) = 3
27 x 3 = 81
And,
27* = 27(3) = 81
Are these all the same?
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AleksandrM
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