2. A biker rode up a 20 km hill in 2 hours and down the hill in 0.5 hour
without stopping. What was his average speed:
- going up the hill
- going down the hill?
the whole trip?

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?