Question

VELE 39 PONTOS ! ME AJUDEM PFVRR

URGENTEEEE​

Answer 1

Resposta:

4)

a)

$( - \frac{7}{5} ) {}^{3} = - \frac{ {7}^{3} }{ {5}^{3} } = - \frac{343}{125}$

b)

- 4 × 4 × 4 × 4

- 256

c)

$- {3}^{ - 5} = - \frac{1}{ {3}^{5} } = - \frac{1}{243}$

5)

a) 15⁵ × 15⁷ × 15

15 ⁵+⁷+¹

15¹³

b) (-2,3)¹⁵ ÷ (-2,3)⁸

(-2,3) ¹⁵-⁸

(-2,3) ⁷

c) 8⁵ × 4⁵

( 8×4 )⁵

32⁵

d) 120⁷ ÷ 5⁷

(120÷5)⁷

24⁷

6)

a)54600000000 = 5,46 × 10¹⁰

b)0,00012 = 1,2 × 10^-⁴

c)38000000000000 = 3,8 × 10¹³

d)0,00000008 = 8 × 10^-⁸

7)

a)⁴√81 = ⁴√3⁴ = 3¹

b) √4³ = √(2²)³ = √2⁶ = 2³

c) ³√125 = ³√5³ = 5¹

d) √144 = √12² = 12¹

bons estudos!

espero ter ajudado.