Question

complete corretamente a tabela
​

Answer 1

5)

-13 * -7 = 91

-80 * 42 = - 3360

6.a) >

6.b) >

6.c) =

6.d) =

7.a) $-15^{2}$

-15 * -15 = 225

7.b) $-10^{5}$

(-10) * (-10) * (-10) * (-10) * (-10) = 100000

7.c) $-1^{10}$

(-1) * (-1) * (-1) * (-1) * (-1) * (-1) * (-1) * (-1) * (-1) * (-1) = 1

7.d) $12^{12}$

12 * 12 * 12 * 12 *12 * 12 * 12 * 12 * 12 * 12 * 12 * 12  = 8916100448256

7.e) $-20^{3}$ = -20 * -20 * -20 = 8000

7.f) $-2^{6}$ = -2 * -2 * -2 * -2 * -2 * -2 = 64

8.a) 2/7 + 5/6 = 12/42 + 35/ 42 = 47/42

8.b) 1/9 + 7/6 = 2/18 + 21/18 = 23/18

8.c) 3/10 + 5/6 = 9/30 - 25/30 = -16/30

8.d) 3/8 - 5/4 = 3/8 - 10/8 = -7/8

9) 47/42 = 47 : 42 = 1,11

23/18 = 23 : 18 = 1,27

-16/30 = -16 : 30 = 0,53

-7/8 = -7 : 8 = 0,875