Dominick and Ryan both invest $6,500 into savings accounts that earn 6.8% interest. If Dominick’s account earns compound interest and Ryan’s earns simple interest, how much more interest will Dominick have earned after 10 years?

3/8

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen

i believe the answer is y=0.25x+-3