4. Choose the type of variation that relates the variables in the table. х
y
3
15
8
40
10
50
direct variation
combined variation
joint variation
inverse variation

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Find the domain of the following expression: 1/(√x)-2

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle