Answer:
x = 10 degrees
Step-by-step explanation:
the sum of angles in triangle = 180 degrees
11x - 5 + 6x + 5 + x = 180
combine
18x = 180
divide
x = 10 degrees
Yes I know how to answer math questions plus I'm in all advanced classes
I got that x equals -3.809523 (repeating)
$0.59 x 8 = 4.72
4.72 + 5.87 = 10.59
Hope this helped, please mark brainliest :)
F(x) = x² + 4x - 12
x = -b/2a
x = -(4)/2(1)
x = -4/2
x = 2
f(x) = x² + 4x - 12
f(2) = (2)² + 4(2) - 12
f(2) = 4 + 8 - 12
f(2) = 12 - 12
f(2) = 0
The vertex of the function is (2,0).