How many roots do the functions have in common? f(x)=x^2-4x-5

a. f and g share the same root(s).

b. f and g share one root in common but each have another root that is not shared.

c. f and g share no roots in common.

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm

Three people are traveling and need to exchange the currency of their native country for the currency of the country they are visiting. drag each exchange to the category that shows the ratio of currencies in that exchange.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b