Students are working on problems where they convert distances measured in miles to kilometers. To estimate the number of kilometers, Tony takes the number of miles, doubles it, then subtracts 20% of the result. Zia first divides the number of miles by 5, then multiplies the result by 8. Do these two methods give the same results? Explain why or why not.

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.

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

How do you find the distance of each number from the mean