Jason can wash and wax his car in 4 hours. his sister does the same thing in 6 hours. if they work together how fast can they wash and wax the car?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

With number 11 ( show how you got the answer)

Ineed asap. 35 points. in order for two polygons to be similar, two conditions must be met. first, all pairs of corresponding sides must be in proportion. second, all corresponding angles must be congruent. prove that angle congruence is not enough, by itself, to establish that two polygons are similar. do this by describing or drawing two polygons that are not similar but whose corresponding angles are all congruent.