The correct answer is B) The set of all first elements of the function. Let's say you had these three points on a graph of a function: (0.9), (2.6), (4,7). The domain of these three points would be (0,2,4). The domain is just the input for which the function is defined. Hope this helps.
One solution x = 1, y = 4
The middle angles of a rhombus are 90 degrees which means the other two angles of the triangle must total 90 degrees.
(8x +7) + (3x + 6) = 90
11x + 13 = 90
11x = 77
x = 7
5 x 5 / 2 This problem is super easy because i am in Kamehameha Schools and the answer to this problem is 12.5
Check the picture below.
recall that a solution is where both graphs meet.