Comprensión e interpretación del pi 1. Calcula el promedio en cada caso. a. Las edades de un grupo de nueve niños de un colegio son \( 9,10,12,11,10,13,12 \), 10 y 8 años. b. Las temperaturas máximas registradas en una semana fueron \( 28,30,32,29,31,32 \) y 28 grados Celsius.

If you applied the divisibility test for 8 to determine whether or not the natural number 437739462455 is divisible by 8 , you would check to see if 8 divides what number? \( > \) Next Question

\( A=\left[\begin{array}{ccc}1 & 3 & 5 \\ 5 & -1 & 1 \\ 3 & 0 & -2\end{array}\right] \quad B=\left[\begin{array}{ccc}3 & -5 & 2 \\ 3 & 4 & 0 \\ 2 & 1 & -3\end{array}\right] \quad C=\left[\begin{array}{ccc}2.1 & -4 & 1.5 \\ -3 & 5 & 0.3 \\ 5.4 & 2 & -2.8\end{array}\right] \) Find the value in row 2 columin 1 of \( A+B \).

Divide and simplify. \( \frac{3}{5} \div \frac{27}{2} \)

If you applied the divisibility test for 9 to determine whether or not the natural number 33383687 is divisible by 9 , you would check to see if 9 divides what number? \( > \) Next Question

Suppose we know that the last two digits of a number are 50. Use appropriate divisibility tests to select all the statements that we know *must* be true. divisible by 4 divisible by 9 divisible by 5 divisible by 3 divisible by 10 divisible by 2 \( > \) Next Question