The arm span and foot length were measured (in centimeters) for each of the 19 students in a statistics
class and displayed in the scatterplot. An analysis was
completed, and the computer output is shown. Using the computer output, what is the equation of the
least-squares regression line?
A. ý = -7.611 + 0.186x
B. ý= 0.186 -7.611x
C. ý = 2.567 + 0.035x
D. ý = 0.035 + 2,567x

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.

What is not a question to ask to determine the reasonability of a solution