Hello!
Here we have s=r*thetha and s is arc length which is what you want here. Also r is radius and theta is in radians only! So given your values we have
s=3.5/2*(20revs)*2pi
(because 2pi is one rev in radians)
s=1.75*40pi = 70*pi for an exact answer. Or 70*pi= 220ft
Hope this helps! Any questions please ask!!
Thank you!!
Part A: 7n+6
Part B: By verbal do you mean like Three times N plus Eight ?
Comment on this answer and i can tell you
The last one. Proper scientific notation the base number must be between 1 and 10 so .5 will not work
The answer looks like it should be (8,-3)