Select all that apply
which of the following are equivalent
- 0.4
- 40%
- 4%
- 2/5

0.4, 40% and 2/5  are equivalent.

Step-by-step explanation:

40% = 40 / 100 = 0.4.

40% = 40 / 100 =  4/10 = 2/5.

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.