If ab is parallel to co and the slope of cd is-8, what is the slope of ab
a(1/8)
b(-1/8)
c(-8)
d(8)

The slope is option C because parallel lines have the same slope.

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.