MATH FINAL TOMORROW! PLEASE HELP! I have no idea what piecewise functions are or how to solve them! Please explain how, thank you!
I'm willing to give up a lot of points to understand this, so please help me.

A piece wise function is pretty easy

Think of it like as a lot of functions with inequalities.

So lets say for example

Your Going to a skate park that counts time

Up to 6 minutes costs $50

Over 6 and up to 15 minutes costs $80

Over 15 minutes costs $80 plus $5 per minute above 15 minutes

The function would look something like

H(t)={ $50  If T is less then Or equal to 6

         $80  If T is greater then 6 AND T less then or equal to 15

         $80+$5(T-15)   If T is greater then 15 }

Just simplify the worded problems into inequalities

And then a question would be something like, you visit for 13 minutes, how much would you pay?

It‘d be $80 becuase the chart says, if T (13) is greater then 6 And less then or equal to 15, its be 80 dollars.

Get it?

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions

use formula for the circle a=3.14

step-by-step explanation: