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Compounds which are found naturally in the earth are called: a. ores b. composites c. rocks d.minerals

Acompany produces items in small batches. the machinery needs to warm up before the items can be produced. the scatterplot shows the time needed to produce batches of different numbers of items. based on the line of best fit, which of these statements is true?

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)