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pshichka [43]
3 years ago
8

Use The elimination method a). 2x + 3y = 5 -3 + 2y = -14

Mathematics
1 answer:
ololo11 [35]3 years ago
8 0
    2x+3y=5
-3x+2y=-14




3( 2x+3y=5)
  2 (-3x+2y=-14)
--------------------
   13y=-13        ⇒y=-13/13=-1


  2( 2x+3y=5)
-3(-3x+2y=-14)
---------------------
13x  = 52      ⇒x=52/13=4

Answer: x=4; y=-1

To check:
2x+3y=5
2*4+3*(-1)=8-3=5

-3x+2y=-14
-3*4+2*-1=-12-2=-14

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<h3>Properties of a Square pyramid </h3>

From the question, we are to determine the statements that are true about the pyramid

The diagram shows a square pyramid,

The length of a side of its base is 756 ft

and

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Since the pyramid is a square pyramid,

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Since the height of a triangular face is 612 ft,

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Thus, the second statement is true

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The pyramid has four lateral faces which are each a triangle

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Hence, the statements that are true about the pyramid are

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Learn more on Pyramid here: brainly.com/question/10042135

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