Mathematics, 20.09.2019 21:40 dubose8872
Two ad agencies want to understand issues that are important to students. agency a will interview 50 students whose names are randomly chosen from school enrollment data. agency b will interview 50 randomly selected people from those who respond to a social media posting. which method will produce a fair sample of the student population and why?
agency a, because students are convenient and easy to interview
agency a, because names randomly selected from school data will be student names
agency b, because people who respond to social media postings have strong opinions
Answers: 2
Mathematics, 21.06.2019 14:00
△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .
Answers: 1
Mathematics, 21.06.2019 20:30
Which shows the graph of the solution set of 3y – 2x > –18?
Answers: 1
Mathematics, 21.06.2019 20:30
Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.
Answers: 1
Mathematics, 21.06.2019 23:10
Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth
Answers: 2
Two ad agencies want to understand issues that are important to students. agency a will interview 50...
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