Question

exercicio completo me ajudem por favor​

Answer 1

Explicação passo a passo:

3 -

a) $(90)^{-3}$ =  $(1/90)^{3}$ = $1^{3}$/$90^{3}$

b) 7²/8² = 49/64 = 0,76563

4 -

a) f(0) = $2^{0}$ = 1

b) f(4) = $2^{4}$ = 16

c) f (1/3) = $2^{\frac{1}{3}}$ = 0,66667

d) f(-3) = $2^{-3}$ = $(1/2)^{3}$ = 1/8 = 0,125

5-

a)

$3^{x}$ = 9

$3^{x}$ = 3²

x = 2

b)

$4^{x+1}$= 16

$4^{x+1}$= 4²

x+1 = 2

x = 2 - 1

x = 1