The answer of the question is D ( x-intercepts)
Answer:
(D) 3, 3, 6
Step-by-step explanation:
The triangle inequality says the sum of the shortest two legs must be longer than the longest. In the case of {3, 3, 6}, the sum is exactly equal to the longest, so the "triangle" will look like a line segment and have zero height and zero area,
Some authors describing the triangle inequality find that to be an acceptable condition. Apparently the author of this question does not.
X^2+12x<-11
add 11 both sides
x^2+12x+11<0
wht 2 numbres multiply to get 11 and add to get 12
11 and 1
(x+1)(x+11)<0
at x=-1 and x=-11
test other numbers
x=-10 gives us -9<0, true
x=-12 gives us 13<0, false
x=0 give us 0<0, false
so it is the range of numbers from -1 to -11
-11<x<-1
