AD is the perpendicular bisector of BC. BD = 5x - 10 and DC = 3x + 10. Determine the value of x.

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is