The hawaiian islands formed as a result of tectonic plate movement over a volcanic hot spot. the rate of plate movement can be calculated by dividing the distance that an island is from the hot spot by the age of the island. a scientist determines that one of the islands is 4860 kilometers from the hot spot and is 6.5×10^7 years old. which of the following statements are true? select three that apply. a the rate of plate movement is approximately 7.5 cm per year. b the rate of plate movement is approximately 7.5×10^-5km per year. c in a million years, the plate has moved a distance of approximately 75 m. d in a million years, the plate has moved a distance of approximately 7.5×10^7 mm.

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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.

Need to finish my juan wants to build a greenhouse in his back yard. he needs to maximize the ratio of floor area to structure volume in order to provide the most room for plants while minimizing the area to be heated. find the description of the structure that best meets juan’s criteria. a.) a hemisphere with a diameter of 12 feet b.) a cube with a side length of 12 feet c.) a cone with a diameter of 12 feet and a height of 10 feet d.) a square pyramid with a base side length of 12 feet and a height of 9 feet