Let d1 and d2 be the intersection lines of planes −x+3y+z−3 = 0 and x+3y−5z−4 = 0, 2x − y + z + 1 = 0 and x + y − 3z = 0, respectively.

a) Show that whether d1 and d2 are planar. If so, find this plane.

b) Show that whether d1 and d2 are intersecting. If so, find the intersecting point.

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation

Hii1977 cleaner shrimp are a species of shrimp that clean parasites from other organisms. fish allow the shrimp to eat the parasites in their mouth. the shrimp get a source of nutrition. the relationship between the shrimp and the fish is this association indicates that for the smaill aneser arecommensal,mutualistic,or parasitic for the begger one the anser are the shrimp and fish benefit each other , the shrimp harm the fish, or the fish do not benetit from the shrimp