If the Average Density of the Universe Is Less Than

question 33

True/False

If the average density of the universe is less than the critical density,the universe is open.

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Definitions:

Evaluate

The process of calculating the value of an expression for a given value of its variables.

Expression

Any mathematical phrase that can contain numbers, variables, and operation symbols, but does not have an equality symbol.

Simplify

The act of making an expression as simple as possible.

Expression

A combination of symbols that jointly express a quantity or number, which can include variables, constants, and operating symbols.