A telescope contains both a parabolic mirror and a hyperbolic mirror. They share focus Upper F 1, which is 45 feet above the vertex of the parabola. The hyperbola's second focus Upper F 2 is 9 ft above the parabola's vertex. The vertex of the hyperbolic mirror is 4 ft below Upper F 1. Find the equation of the hyperbola if the center is at the origin of a coordinate system and the foci are on the y-axis.

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

How do you summarize data in a two-way frequency table?

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)