Which statements are true of functions? Check all that apply. All functions have a dependent variable.

All functions have an independent variable.

The range of a function includes its domain.

A vertical line is an example of a functional relationship.

A horizontal line is an example of a functional relationship.

Each output value of a function can correspond to only one input value

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Solve the triangle. a = 21°, c = 105°, c = 5

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap