In the town of Maplewood a certain type of DVD player is sold at just two stores. Within the town % of the sales are from store A and % of the sales are from store B. However, % of the DVD players sold at store A are defective and % of the DVD players sold at store B are defective.

Radii ok and nl are perpendicular to om because of the radius-tangent theorem. by definition of perpendicular, angles kom and lnm are right angles. this means that triangles kom and lnm are right triangles. angle lmn is common to both right triangles, so by the triangles kom and lnm are similar.

Select the number of ways in which a line and a circle can intersect

Prove that 16^4-2^13-4^5 is divisible by 11.