Question

o valor de × Que satisfaz a função exponencial9×=raiz de 27 é:A)1/2B)4/3C)3/4D)2/3E)3

Answer 1

${9}^{x} = \sqrt{27} \\ {( {3}^{2} )}^{x} = {27}^{ \frac{1}{2} } \\ {3}^{2x} =( { {3}^{3} )}^{ \frac{1}{2} } \\ 2x = \frac{3}{2} \\ x = \frac{3}{2} \times \frac{1}{2} \\ x = \frac{3}{4}$
alternativa c) 3/4