bantu jawab nomor 2 dan 3 dong

2.
[tex] \frac{ - 75}{100} \div \frac{3}{2} \times \frac{4}{3} - \frac{1}{6} [/tex]
[tex] = \frac{ - 75}{100} \ \times \frac{2}{3} \times \frac{4}{3} - \frac{1}{6} [/tex]
[tex] = ( \frac{ - 75 \times 2 \times 4}{100 \times 3 \times 3} ) - \frac{1}{6} [/tex]
[tex] = \frac{ - 600}{900} - \frac{1}{6} [/tex]
[tex] = \frac{ - 600 -150 }{900} [/tex]
[tex] = \frac{ - 750}{900} [/tex]
disederhanakan dengan cara masing-masing dibagi 150
[tex] = \frac{ - 5}{6} [/tex]
jawabannya A

3.

[tex]{9}^{ - 3} \times {3}^{4} [/tex]

[tex] = ( {3}^{2}) ^{ - 3} \times {3}^{4} [/tex]
[tex] = {3}^{ - 6} \times {3}^{4} [/tex]
[tex] = \frac{1}{3^{6} } \times 3^{4} [/tex]
[tex] = \frac{3^{4} }{3^{6} } [/tex]
[tex] = 3 ^{4 - 6}[/tex]
[tex] = {3}^{ - 2} [/tex]
[tex] = \frac{1}{3 ^{2} } [/tex]
[tex] = \frac{1}{9} [/tex]
jawabannya adalah D