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Veseljchak [2.6K]
3 years ago
13

Any answers get 5 stars, Best answer gets brainliest!

Mathematics
2 answers:
siniylev [52]3 years ago
7 0

Answer:

5. and 1 over 6

Step-by-step explanation:

I Checked my answer on a calculator

Romashka [77]3 years ago
4 0
B: Negative 9 and 3 over 6
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If 3x - 2y = 9 , 27x³- 8y³= 1377 , prove that xy = 4 <br><br><br><br>plzz answer this question... ​
solniwko [45]

Step-by-step explanation:

Here we are given that , the Value of

  • 3x - 2y = 9
  • 27x^3 - 8y^3 = 1377

And we need to find the prove that ,

  • xy = 4

We know a identity as ,

  • (a-b)^3 = a^3-b^3-3ab(a-b)

On cubing both sides of the given equation,

  • (3x-2y)^3 = 9^3

Simplify and then substitute ,

  • 27x^3-8y^3 -3(3x)(2y)(3x-2y ) = 729

  • 1377 - 18xy (9) = 729

  • 162xy = 1377-729

  • xy =\dfrac{648}{162}

  • xy = 4

Hence Proved !

8 0
3 years ago
Help please! answer correctly for brainliest . ( look at picture for question and answer choices )
lubasha [3.4K]

Answer:

Non-linear and decreasing so B

Step-by-step explanation:

It is non-linear as it is not a straight line

It's also going down so its decreasing

4 0
2 years ago
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Photography World has a portrait special. A three-pose portrait package has a sitting fee of $35, and a six-pose package has a s
ki77a [65]
We know that a three-pose portrait package has a sitting fee of $35 and <span> a six-pose package has a sitting fee of $60. The total amount they collect is $690.

</span>\text{Therefore, the equation can be} 35x + 60y = 690
6 0
3 years ago
8.6 - 5.36 plz help me
olga nikolaevna [1]

Answer:

3.24

Step-by-step explanation:

It's really hard to explain things like this aha-

6 0
2 years ago
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HELP ME PLEASE!!!!!!
olga nikolaevna [1]
THE ANSWER FOR THIS IS G. 16
3 0
3 years ago
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