4. [tex]\sqrt{1625}[/tex]
[tex]\sqrt{25 * 65}[/tex]
[tex]\sqrt{25}\sqrt{65}[/tex]
[tex]5\sqrt{65}[/tex]
[tex]5(8.06)[/tex]
[tex]40.3[/tex]
Between 40 and 41
5.[tex](2x^{5}y^{2})^{3} = 8x^{15}y^{6}[/tex]
6.[tex]\frac{5^{5} * 4^{2} * 2^{3}}{5^{4} * 4^{4} * 2^{3}} = \frac{5 * 1}{4^{2} * 1} = \frac{5}{16 * 1} =\frac{5}{16}[/tex]
