The correct option is Option 4: 
Step-by-step explanation:
Given
Length of box = l = ab
Width of box = w = a+5b
Height of box = h = 2b^2
The volume of a box is given by:

Putting the values

Hence,
The correct option is Option 4: 
Keywords: Volume, Polynomials
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That means that it has 2 complex roots, and it has no x intercepts, means that it doesn't touch the x axis at all
Answer:

Step-by-step explanation:
Slope-intercept formula: 
Find slope of (−1, −7) and (1, -13)





Hope this helps!
Answer:
C
Step-by-step explanation:
Recall the equation for a circle:
, where the center is (h,k) and the radius is r.
The given equation is:

Another way to write this is:

Thus, we can see that h=-5 and k=-7.
The center is at (-5, -7).