Which is the simplified form of x-¹²?

A. x¹²
B. -x¹²
C. 1/x¹²
D. -1/x¹²​

Which system of linear inequalities is graphed? can somebody please

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)