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2 years ago

-3y-7x When x=6, y=3

Mathematics

2 answers:

storchak [24]2 years ago

6 0

Answer:

-9y - 42x

Step-by-step explanation:

so it would be (-3*3) - (7 * 6).

When u solve it would be -9y - 42x

Oksi-84 [34.3K]2 years ago

4 0

-9y-42x

Because they are like terms that is the lowest they can go

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Find the perimeter of the polygon with the vertices A (−1, 1), B (4, 1), C (4,−2), and D(−1,−2).

Brilliant_brown [7]

Given:

The vertices of a polygon are A (−1, 1), B (4, 1), C (4,−2), and D(−1,−2).

To find:

The perimeter of ABCD.

Solution:

Distance formula:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Using distance formula, we get

$AB=\sqrt{(4-(-1))^2+(1-1)^2}$

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Similarly,

$BC=\sqrt{(4-4)^2+(-2-1)^2}=3$

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Now, perimeter of ABCD is

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