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ss7ja [257]
2 years ago
13

Solve the system using elimination. 3x+3y=27 x-3y=-11

Mathematics
1 answer:
Fantom [35]2 years ago
7 0
3x+3y=27
x-3y= -11

-x-y=-9
x-3y=-11

-4y= -20
y= 5

x-3•5= -11
x=4

(x,y)= (4,5)
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Answer:

  square; perimeter 20 units; area 25 square units.

Step-by-step explanation:

As the attachment shows, each side of the polygon is the hypotenuse of a 3-4-5 right triangle, so has length 5 units. The perimeter is the sum of those lengths, 4×5 = 20; the area is the product of the lengths of adjacent sides, 5×5 = 25.

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The perimeter is 20 units; the area is 25 square units.

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Answer:

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Step-by-step explanation:

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5 0
3 years ago
223.6 x 0.0048 rough checks​
Norma-Jean [14]

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1.07328

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