Jonathan used completing the square to find the maximum value of the quadratic expression -x^2 - 4x + 1. what is the maximum value of the expression, and at what x value does it occur?

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?

Change negative exponents to positive. then solve. round to four decimal places