If su3t4 >0, which of the following products must be positive?

[rpryor]

The real question ..What type of problem is this? Is it an Inequality? or expression? or what ? Thnx
If su3t4 >0, which of the following products must be positive?

(a) su
(b) st
(c) ut
(d) sut
(e) su2

 

[pka]

The real question ..What type of problem is this? Is it an Inequality? or expression? or what ? Thnx
If su3t4 >0, which of the following products must be positive?
(a) su
(b) st
(c) ut
(d) sut
(e) su2

The notation is poor.
Which of these does it mean: \(\displaystyle 12\cdot s\cdot u\cdot t\text{ or }s\cdot u^3\cdot t^4~?\).

 

[rpryor]

THnx for your help...
I literally just copied that question from a MAth Test sample. I have a employment test I've scheduled. What I'm trying to do is find out what type/ kind of math problem this is. So I can better prepare. So this is the Sample Math problem and those are the multiple choice options. Anyones insight would be appreciated.

If su3t4 >0, which of the following products must be positive?

(a) su
(b) st
(c) ut
(d) sut
(e) su2

 

[rpryor]

ooooohhhh...sorry I didnt realize the exponents dot look like exponents when I did the cut an paste

Ok I attached a .pdf file with the whole test. The problem I'm asking about is #5..

Sorry..Thnx again

 

[rpryor]

Here it is.. Thnx

 

[Deleted member 4993]

The real question ..What type of problem is this? Is it an Inequality? or expression? or what ? Thnx
If su³t⁴ >0, which of the following products must be positive?

(a) su
(b) st
(c) ut
(d) sut
(e) su2

The real question ..What type of problem is this? Is it an Inequality? or expression? or what ?

I would call it a problem of deduction - so it is a what.

 

[pka]

The real question ..What type of problem is this? Is it an Inequality? or expression? or what ?
If\(\displaystyle su^3t^4 >0\), which of the following products must be positive?
\(\displaystyle (a) su,~(b) st,~(c) ut,~(d) sut,~(e) su^2\)

Please take note on how important posting correctly is.
Using some simple LaTeX code makes you post readable.
[TEX]su^3t^4>0[/TEX] gives \(\displaystyle su^3t^4>0\)

I would call this a concept question. It it is about the concepts of how signs have an effect on multiplication of fractors and powers.
We are given that \(\displaystyle su^3t^4>0\). But we know that no matter what \(\displaystyle t^4\ge 0.\)
Moreover, \(\displaystyle su~\&~su^3\) must have the same sign for any values of \(\displaystyle s~\&~u\).
Therefore, which of the distractors is the correct answer?

 

[rpryor]

THnx for the help...

The correct answer is a)su

I just was having a problem with the mathematical classifying of this kind of problem.