Keep in mind both of these angles are equal to each other meaning the equation will have a = So...
4x+7=5(x-4)
Now multiply 5 to x and 4
4x+7=5x-20
Now subtract 4x from 5x
7=1x-20
Now add 20 to both sides
27=x
So x=27
ANSWER

EXPLANATION
The end points of the segment are:

and

The box represents the midpoint of the two points.
Using the midpoint formula;

We substitute the end points of the line segment to obtain,

This simplifies to:

We convert back to mixed numbers to get,

The correct choice is B
For a perfect square
b² = 4*a*c
Comparing ax² + bx + c = 0 to x² + bx + 16
a = 1, c = 16
<span>b² = 4*a*c
</span>
<span>b² = 4*1*16
</span>
<span>b² = 64
</span>
b = √64
b = 8
The value of b = 8.
B. If you multiply 1/12 by (-x) it's -1/12x and if you multiply 1/12 by (-4) it's -4/12 which is equivalent to -1/3.