tolong jawabkan no 11,12,13,dan 14 beserta caranya

11. 12,75/0,025 = 510
12. 20 liter x 1/5= 4liter pergelas ( ane kurang paham no ini)
13. (-3)^3+2^5 = -27+32=5
14. d. 1/3^2 < 1/2^3
          = 1/9 < 1/8 harusnya kan lebih gedean yg 1/8

11. D
[tex] \frac{12.75}{0.025} = 510[/tex]

12. A
[tex]20 \div \frac{1}{5} = 20 \times 5 = 100[/tex]

13. D
[tex] {( - 3)}^{3} + {2}^{5} \\ = - 27 + 32 \\ = 5[/tex]

14. C
jika dijabarkan :
» A
[tex] {3}^{4} > {3}^{3} \\ 81 > 27[/tex]
benar

» B
[tex] {3}^{4} > {4}^{3} \\ 81 > 64[/tex]
benar

» C
[tex] \frac{1}{ {2}^{3} } < \frac{1}{ {2}^{4} } \\ \frac{1}{8} < \frac{1}{16} \\ \frac{2}{16} < \frac{1}{16} [/tex]
salah

» D
[tex] \frac{1}{ {3}^{2} } < \frac{1}{ {2}^{3} } \\ \frac{1}{9} < \frac{1}{8} \\ \frac{8}{72} < \frac{9}{72} [/tex]
benar




semoga membantu