points are aligned to either a curve or possibly a line with a small positive slope. Choice C is incorrect because the points are aligned to a line with a positive slope, indicating a positive association between and d t. Explanation for . Choice D is correct. Since there are 10 grams in 1 decagram, there are 2 times 10, equals 20 grams in 2 decagrams. Since there are 1,000 milligrams in 1 gram, there are 20 times 1,000, equals 20,000 milligrams, in 20 grams. Therefore, 20,000 1-milligram doses of the medicine can be stored in a 2decagram container. Choice A is incorrect; 0.002 is the number of in 2 milligrams. Choice B is incorrect; it could result from multiplying by 1,000 and dividing by 10 instead of multiplying by both 1,000 and 10 when converting from decagrams to milligrams. Choice C is incorrect; 2,000 is the number of milligrams in 2 grams, not the number of milligrams in 2 decagrams. Explanation for . Choice C is correct. Let represent the number of installations that each unit on the x yaxis represents. Then 9 5 6 4 and 3.5 are the number of rooftops with solar panel x, x, x, x, x installations in cities A, B, C, D, and E, respectively. Since the total number of rooftops is 27,500, it follows that 9 plus 5 plus 6 plus 4 plus 3.5 equals 27,500, which x x, x x, x, simplifies to 27.5 equals 27,500. Thus, equals 1,000. Therefore, an appropriate label x x for the is of installations (in thousands).” yaxis “Number Choices A, B, and D are incorrect and may result from errors when setting up and calculating the for the yaxis. Explanation for . Choice D is correct. If the value of the absolute value of minus 1, end absolute value, n plus 1, is equal to 0, then the absolute value of minus 1, end absolute value, plus 1, n equals 0. Subtracting 1 from both sides of this equation gives the absolute value of n
points are aligned to either a curve or possibly a line with a small positive slope. Choice C is incorrect because the points are aligned to a line with a positive slope, indicating a positive association between d and t. Explanation for . Choice D is correct. Since there are 10 grams in 1 decagram, there are 2 times 10, equals 20 grams in 2 decagrams. Since there are 1,000 milligrams in 1 gram, there are 20 times 1,000, equals 20,000 milligrams, in 20 grams. Therefore, 20,000 1-milligram doses of the medicine can be stored in a 2decagram container. Choice A is incorrect; 0.002 is the number of in 2 milligrams. Choice B is incorrect; it could result from multiplying by 1,000 and dividing by 10 instead of multiplying by both 1,000 and 10 when converting from decagrams to milligrams. Choice C is incorrect; 2,000 is the number of milligrams in 2 grams, not the number of milligrams in 2 decagrams. Explanation for . Choice C is correct. Let x represent the number of installations that each unit on the yaxis represents. Then 9 x, 5 x, 6 x, 4 x, and 3.5 x are the number of rooftops with solar panel installations in cities A, B, C, D, and E, respectively. Since the total number of rooftops is 27,500, it follows that 9 x plus 5 x, plus 6 x plus 4 x, plus 3.5 x, equals 27,500, which simplifies to 27.5 x equals 27,500. Thus, x equals 1,000. Therefore, an appropriate label for the yaxis is “Number of installations (in thousands).” Choices A, B, and D are incorrect and may result from errors when setting up and calculating the for the yaxis. Explanation for . Choice D is correct. If the value of the absolute value of n minus 1, end absolute value, plus 1, is equal to 0, then the absolute value of n minus 1, end absolute value, plus 1, equals 0. Subtracting 1 from both sides of this equation gives the absolute value of n
doc_sat-practice-test-4-math-calculator-assistive-technology.docx