The Rouse number to predict if grains are moved as bed load or in suspension is R= w_s / (kappa u_*), in which w_s is the settling velocity of grains. Kappa is the van Karman constant and u_* is the shear velocity, which is the shear stress in units of velocity. What does w_s, the settling velocity, in R represent?

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Martin likes to make flower bouquets that have 3 daffodils and 4 tulips per vase. a daffodil has a mass of d grams, a tulip has a mass of t grams, and the vase has a mass of u grams. the expression 5(3d + 4t + v) describes the mass of 5 bouquets. match each amount in the situation with the expression that represents it. situation expression number of bouquets mass of one bouquet mass of the tulips in one bouquet 4t mass of the daffodils in one bouquet 3d + 4t + v

State one method by which you can recognize a perfect square trinomial.