X + x+1 + x + 2 = 20
3x + 3 = 20
3x = 17 but can't start with x = 6 because 6+7+8 > 20,
so have start with 5 + 6 + 7 = 18 are the 3 sides.
Answer:
y= -2/3x-1
Step-by-step explanation:
Hope this helps!
Answer:
400,000
Step-by-step explanation:

Notice that equality holds when either

or

, so these should be included in the solution set.
Now, since the coefficient of the leading term is positive, we know the parabola opens upward, which means we know that

when

and

, and that

when

.
So the solution set is the interval

.