Answer +

what is the difference of the polynomials?

(12x^2 - 11y^2 - 13x) - (5x^2 - 14y^2 - 9x)

a. 7x^2 + 3y^2 - 4x

b. 7x^2 - 3y^2 - 4x

c. 7x^2 - 25y^2 - 22x

d. 17x^2 - 25y^2 - 22x

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?