triangle X has two angles that measure 80 degrees and 30 degrees. triangle Y has two angles that measure 80 degrees and 70 degrees. hannah says that triangles x and y are not similar. jasmine says they are. who is correct? explain

Which is the focus of a parabola with equation y2=4x

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.