Suppose we have four coins and possibly one coin is either too light or too heavy (all four might be true). (a) Show how to determine which of the nine possible situations holds with just two weighings, if given one additional coin known to be true. (b) Show that two weighings are not sufficient without the extra true coin

Which of the following properties can be used to show

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

The data shown in the table below represents the weight, in pounds, of a little girl, recorded each year on her birthday. age (in years) weight (in pounds) 2 32 6 47 7 51 4 40 5 43 3 38 8 60 1 23 part a: create a scatter plot to represent the data shown above. sketch the line of best fit. label at least three specific points on the graph that the line passes through. also include the correct labels on the x-axis and y-axis. part b: algebraically write the equation of the best fit line in slope-intercept form. include all of your calculations in your final answer. part c: use the equation for the line of best fit to approximate the weight of the little girl at an age of 14 years old.