Question

Local hardware store sells fencing for $1.30 per yard of each unit of a good represents 25 years how much will it cost to fix a problem presented by the polygon MNOP

(Please help me I really don’t understand )

Answer 1

Explanation:

You go in order from MNOP, and you count the negatives and the positives and add them all together. I did that for you. But now add the negatives and positives, think of a number line, left of zero is negatives and right of zero is positive.(like I show in the second picture) make sense?

Answer 2

The cost of fencing is $670.5.

Explanation:

It is given that the cost of fencing is $1.30 per yard.

From the given figure it is clear that the M(-4,2), N(1,4), O(4,4), P(4,0).

Distance formula:

`d=√((x_2-x_1)^2+(y_2-y_1)^2)`

Using distance formula, we get

`MN=√(\left(1-\left(-4\right)\right)^2+\left(4-2\right)^2)=√(29)`

`NO=√(\left(4-1\right)^2+\left(4-4\right)^2)=3`

`OP=√(\left(4-4\right)^2+\left(0-4\right)^2)=4`

`MP=√(\left(4-\left(-4\right)\right)^2+\left(0-2\right)^2)=2√(17)`

The perimeter of the given polygon is

`Perimeter=MN+NO+OP+MP`

`Perimeter=√(29)+3+4+2√(17)`

`Perimeter\approx 20.63`

The perimeter of the given polygon is 20.63 units.

It is given that 1 units = 25 yards.

`20.63\text{ units}=20.63* 25\text{ yards}`

`20.63\text{ units}=515.75\text{ yards}`

Cost of fencing = $1.30 per yard

`cost=670.475\approx 670.5`

Therefore the cost of fencing is $670.5.