Tolong Aku mohon. ....bantuuuuu.. aku

1.
[tex]c. \sqrt{81} = 9[/tex]

[tex] a. \: \sqrt[3]{512} = 8[/tex]
[tex] b .\sqrt{256 } = 16[/tex]
[tex]d. \sqrt{729 \: } = \: 27[/tex]
2.
[tex]a. \sqrt{30 \: } = 5.48[/tex]
[tex]b. \sqrt{18} = 4.24[/tex]
3.
[tex]a. (1.3) {}^{3} = 2.197[/tex]
[tex]b. \: {3}^{2} + {5}^{2} = 9 \: + \: 25 \: = 34[/tex]
[tex]c. \: \: {8}^{3} = \: 512[/tex]
[tex]d. \: \: {15}^{2} - {9}^{2} = 225 - \: 81 = 144[/tex]