Given that BC is the diameter of Circle A, the measure of BAF is x+50 and the measure of the XF is x+20 find X. PLEASE HELP ASAP IM BEGGINGGG ITS URGENT

Can (3,5 and square root 34) be sides on a right triangle?

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k