Respuesta :
Answer:
Emanuel did a mistake in her first step.
Step-by-step explanation:
The given expression is
[tex]\left(\dfrac{3}{5}\right)\left(\dfrac{4}{9}\right)\left(-\dfrac{1}{2}\right)[/tex]
Emanuel solve this problem but she did a mistake in her first step. She distributes negative sign with 1 and 2 both which is incorrect. We can write negative sign with either 1 or 2 but not both.
Correct steps are:
Step 1:
[tex]\dfrac{(3)(4)(-1)}{(5)(9)(2)}[/tex]
Step 2:
[tex]\dfrac{-12}{90}[/tex]
Step 3:
[tex]-\dfrac{2}{15}[/tex]
Therefore, she did a mistake in her first step.