5 Describe the mathematical relationship between the gravitational potential energy of an object and its height above a reference point. 6 If the gravitational potential energy of an object 10 m above the ground is 50 J , what is its \( E_{p} \) if it moves to 30 m above the ground?

Usando solamente los dígitos \( 0,1,2,3,4 \) y 5 . ¿Cuántos números pares de cuatro cifras se pueden formar, si un mismo digito se puede repetir más de una vez en un mismo número?

5 What is the multiple zero and multiplicity of \( f(x)=(x+8)(x+8)(x-3)(x+8) ? \)

Lilly and Kornelia shared a whole pizza. They shared the pizza in the ratio \( 9: 11 \). What percentage of the pizza did Lilly eat?

Use matrices to find \( \mathbf{u}+\mathbf{v}, \mathbf{u}-\mathbf{v} \), and \( 3 \mathbf{v}-\mathbf{u} \) \[ \mathbf{u}=(-7,7), \mathbf{v}=(3,5) \] (a) \( \mathbf{u}+\mathbf{v} \) \( \mathbf{u}+\mathbf{v}=\square \)

The ratio of boys to girls in the sixth grade is 2 to 3. If there are a total of 80 boys, how many girls are there?