Because a fluid such as water is nearly incompressible, its density can be taken (assumed) to be:
constant
unknown
variable
insignificant

Question

Because a fluid such as water is nearly incompressible, its density can be taken (assumed) to be:
	       constant
 		unknown
 		variable
 		insignificant

anonymous · Answer

Density is defined as$$\rho = {m \over V}$$Incompressible means we cannot change the volume, therefore, what can you infer about its density.

anonymous · Answer

its a variable...

anonymous · Answer

Variable means change. Incompressible means NO change. Which of those words means no change?

anonymous · Answer

constant

anonymous · Answer

Exactly. The density is constant for a fluid that is incompressible.

anonymous · Answer

this is the simplest of your questions if i do say so myself, water is a liquid therefore imcompressible so its density remains a cosntant goes for all liquids at the their liquid temperatures :)

anonymous · Answer

Liquids are not always incompressible. In fact, no liquid is truly incompressible. We can make this assumption because the bulk modulus of water is very high. 

Mythias. Please be careful how you answer questions. I have seen numerous wrong answers from you tonight.