Which of these data sets is symmetrical?

a. 1, 7, 13, 13, 13, 19, 19, 19, 25, 31, 37
b. 1, 1, 13, 13, 19, 19, 19, 25, 25, 31, 37
c. 1, 7, 13, 13, 19, 19, 19, 25, 25, 31, 37
d. 1, 7, 13, 19, 19, 19, 25, 25, 25, 31, 37

To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy

The equation of a circle is (x + 4)2 + (y + 6)2 = 16. determine the length of the radius. 10 4 16 8 my flower basket delivers flowers within a 20 mile radius of their store. if this area is represented graphically, with my flower basket located at (5, 2), what is the equation that represents the delivery area? (x - 2)2 + (y - 5)2 = 20 (x - 5)2 + (y - 2)2 = 20 (x + 5)2 + (y + 2)2 = 400 (x - 5)2 + (y - 2)2 = 400

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is