Does soil filled with nitrogen increase the weight of worms compared with soil without nitrogen? The weight of 20 randomly selected worms is acquired, 10 in soil with nitrogen and 10 in soil without nitrogen. The mean weight of worms in soil with nitrogen was 36.6 micrograms whereas the mean weight of worms in soil without nitrogen was 27.3 micrograms. A researcher randomized the data over 100 trials, and the difference of means for each trial is shown in the dot plot below.

16.9 times 2.85

step-by-step explanation:

5050 i think

step-by-step explanation:

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: