Question

precalc

Answer 1

3b?

Answer 2

Find area of the region that is wiped by taking the area of the bigger circle (r=22) and subtract it to the area of the small circle (r=6). Assume that the whole thing is a circle.

\(22^2π-6^2π=448π\)
Now you need a small portion of it, because the wiper doesn't wipe a full circle. So you know that the area cleaned is 10 sq inches, and you have the area of the whole circle. Now you can find the angle theta

\(\frac{ θ}{360}448π=10\)

you can find θ now

Answer 3

θ(448π)=3600
θ = 3600/448pi = 2.5578473

Answer 4

what is 2.55 though

Answer 5

3600 or 360?

Answer 6

you got it right nvm,

2.55 is the answer to your question

Answer 7

3600, oh the degrees

Answer 8

2.55 is the angle that is sweeped

Answer 9

yes, ty