A city planner designs a park that is a quadrilateral with vertices at J(-1,1), K(1,3), L(5,-1), and M(-1,-3). There is an entrance to the park at the midpoint of each side of the park. A straight path connects each
entrance to the entrance on the opposite side. Assuming each unit of the coordinate plane represents 10
meters, what is the total length of the paths to the nearest meter? Round your answer to the nearest
whole number.
The total length of the paths is approximately
meters.

step-by-step explanation:

mean or average is 40.6

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."