He’s right the answer is b
Answer:
7.21 units
Step-by-step explanation:
The shortest length needed to connect the house to the existing pipeline is the perpendicular distance between the location of the house (2,9) and the line y = 2/3x - 1.
The perpendicular distance (d) between a point (
) and the line Ax + By + C = 0 is given as:

The line is given by y = 2/3 x - 1; 2/3x - y - 1 = 0. The point = (2, 9)
hence A = 2/3, B = -1, C = -1,
. Therefore:

7.) Lets take 25/10 = 2.5
2.5 is the dilation
8.) Lets take 40/24 = 1.7
1.7 is the dilation
Hope this helps!
<span>Volume of sphere is 997.5453mm^3</span>