There is concern that increased industrialization may be increasing the mineral content of river water. ten years ago, thesilicon content of the water in a certain river was 5 mg/ l. eighty-five water samples taken recently from the river havemean silicon content 5.6 mg/l and standard deviation 1.2 mg/ l. can you conclude that the silicon content of the water isgreater today than it was 10 years ago?

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases