Jennifer and Cristina run a race. Jennifer finishes in 33.9 seconds and Cristina finishes in 38.4 seconds. What is the difference in the race times?

4.5 seconds

Step-by-step explanation:

subtraction 38.4 - 33.9 is the difference in the race times

note some teachers mark off if you don't put the units (seconds in this case) in your answer

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.