20n + 28 - 3n = 12n - 27
5n + 28 = -27
5n = -55
n = -11
Answer:
Step-by-step explanation:
let 2x be the length of chord tangent to first circle.
so x=√(14²-6²)=√(14+6)(14-6)=√(20×8)=√160=4√10
length of chord=2x=2×4√10=8√10
That sounds like something i would say XD
