Part A : which sets of measurements could be the interior angle measures of a triangle ? select each correct answer A: 10°,10°,160°
B: 15°, 75° , 90°
C: 20°, 80°, 100°
D: 35°, 35 °, 105 °
E :60°, 60°,60° Part B : which sets of measurements could be the side lengths of a triangle ? select each correct answer. A:3cm,3cm,3cm
B:4cm , 8cm , 13cm
C:5cm,9cm,14cm
D:6cm,7cm,8cm
E:7cm,7cm,10cm​

How do you answer this question? (step by step)

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

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1