For a confidence level of 94%, find the critical value for a normally distributed variable. The sample mean is normally distributed if the
population standard deviation is known.

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Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.