What is the correct classification of the system of equations below?

5x + 6y = 1
y = -5x + 6

a) parallel
b) coincident
c) intersecting

The functions q and r are defined as follows. q(x)= -2x+2 r(x)= x^2 - 1 find the value of r(q(

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

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! ❤