6. Carry out the following conversions. Make sure that the final answer is expressed in the correct number of significant figures. a) 125 kg to pounds b) 90. km/hour to miles/hour c) If light travels at a speed of 3.00 x 108 meter/second, how far can light travel (in feet) in a nanosecond.

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

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.