1. How long was the ice flow in the first tray? 2. After the ice melted, how was the sand in the first tray different from the sand in the second tray?
3. What was the sand depth in the first tray at the beginning of the experiment? What was the sand
depth at the end? Answer these questions for the second tray.
4. Did erosion take place in either tray? Explain your answer.
5. How do you think the results would change if the trays were propped
6. up two inches?

Solve: 3x+y=6 4x-2y=18 show all work !

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.