The equation of circle a is x2 + y2 + cx + dy + e = 0. if the circle is moved horizontally to the left of the y-axis without changing the radius, how are the coefficients c and d affected? a. c and d are unchanged. b. c becomes positive, and d is unchanged. c. c becomes negative, and d is unchanged. d. c becomes negative, and d becomes positive. answer immediately

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

What is 617.3 miles and each gallon of gas the car can travel 41 miles select a reasonable estimate of the number of gallons of gas karl used.

If p(x) is the total value of the production when there are x workers in a plant, then the average productivity of the workforce at the plant is a(x) = p(x) x . (a) find a'(x). a'(x) = xp'(x) − p(x) x a'(x) = xp'(x) − p(x) x2 a'(x) = p'(x) − p(x) x a'(x) = xp'(x) − p'(x) x2 a'(x) = p'(x) − xp(x) x2 why does the company want to hire more workers if a'(x) > 0? a'(x) > 0 ⇒ a(x) is ; that is, the average productivity as the size of the workforce increases. (b) if p'(x) is greater than the average productivity, which of the following must be true? p'(x) − xp(x) > 0 p'(x) − xp(x) < 0 xp'(x) − p'(x) > 0 xp'(x) − p(x) < 0 xp'(x) − p(x) > 0