Select all the conditionals that have a true converse. A. If a quadrilateral is a square, then it has four congruent sides.
B. If a polygon is a triangle, then it has 3 sides.
C. If a quadrilateral is a rectangle, then it has two pairs of parallel sides.
D. If two angles are congruent, then they have the same measure.
E. If two angles are complimentary, then the sum of the measures of the angles is 90.

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

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

Which of the following best describes the figure?