Which of these was a strategy used by cigarette companies during the 1950's to find research showing that smoking did not harm your health?
Over-Precision
Statistical Ignorance
Embellishing Personal Credentials
Repetitious Research

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)