The coordinates of r is ( 4, -1 )
Answer:
3
Step-by-step explanation:
In order to do this equation, your first step is to use the Order of Operations, or PEMDAS, which means that you multiply (M) two times two first before subtracting the equation (S). 2 times 2 is 4. 4 - 1 = 3. Hope I helped! :)
-13.5914091423 is what I got from a calculator.