16. Calculate the refractive index of glass when a light ray follows the path shown in the figure.

1) Representa mediante conjuntos y pares ordenados lo siguiente: \[ \begin{aligned} A & =\{\text { Números pares hasta 10 }\} \\ B & =\text { (Numeros impares hasta } 9]\end{aligned} \]

16.) \( 35=-5(3 x+2) \)

7.1 Calculate the perimeter of the rectangle. 7.2 Calculate the area of the unshaded part.

The weights of the fish in a certain lake are normally distributed with a mean of 13 lb and a standard deviation of 9 . If 9 fish are randomly selected, what is the probability that the mean weight will be between 10.6 and 16.6 Ib ? Round your answer to four decimal places. A. 0.0968 B. 0.3270 C. 0.6730 D. 0.4032

Completely factor the following, if possible. \( 25 y^{2}+36 \)