Answer:
4
Step-by-step explanation:
It becomes positive and stays positive
Answer:
Step-by-step explanation:
Hello
Simplify :
9 (1 - r) + 3r
= 9 - 9r + 3r
= 9 - 6r
= 3(3 - 2r)
Answer:

To find this you must find the slope first:

which is, after performing some calculating is -2.
Next you need to set up your eqaution:

when you set it up, and substitute the variables for your slope and points you should get this:


add 2 to both sides

subtract y from both sides
Answer:
circumference
Step-by-step explanation:
it's a circle
Step-by-step explanation:
(a+b)(a+b)² = (a+b)(a²+2ab+b²)
=a(a²+2ab+b²) + b(a²+2ab+b²)
= a³+2a²b+ab² + a²b+2ab²+b³
=a³+2a²b+ a²b+ab² +2ab²+b³
=a³+3a²b+3ab²+b³