Listed below are speeds (mi/h) measured from traffic on a busy highway. this simple random sample was obtained at 3: 30 p. m. on a weekday. use the sample data to construct a 98% confidence interval estimate of the population standard deviation. 65 64 64 56 64 55 60 59 60 70 59 66

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3

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