Question

Qual o valor de cada expressão :

a)3^2 . 27^-1 . 9^1

b)5^3 . 25^-1 . 625^0

c)4^3 . 27^2 . 32^-1 . 2^1 . 9^3

d)10^3 . 25^-2 . 20^-2 . 2^2 . 5^3

me ajudem pfv!!!​

Answer 1

Explicação passo-a-passo:

a)3^2 . 27^-1 . 9^1

9 × 1/27 × 9 =

81/27=

3!

b)5^3 . 25^-1 . 625^0

125 × 1/25 × 1=

125/25=

5!

c)4^3 . 27^2 . 32^-1 . 2^1 . 9^3

64 × 729 × 1/32 × 2 × 729

68.024.448/32

2.125.764!

d)10^3 . 25^-2 . 20^-2 . 2^2 . 5^3

1000 × 1/625 × 1/400 × 4 × 125

500.000/250.000

2!

Answer 2

Resposta:

a)3^2 . 27^-1 . 9^1

9 × 1/27 × 9 = 81/27= 3

b)5^3 . 25^-1 . 625^0

125 × 1/25 × 1= 125/25= 5

c)4^3 . 27^2 . 32^-1 . 2^1 . 9^3

64 × 729 × 1/32 × 2 × 729

68.024.448/32= 2.125.764!

d)10^3 . 25^-2 . 20^-2 . 2^2 . 5^3

1000 × 1/625 × 1/400 × 4 × 125= 500.000/250.000= 2

Explicação passo-a-passo: