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lina2011 [118]
3 years ago
14

What is the result when 12x2-7y2 is added by -10x2+y2?

Mathematics
1 answer:
madam [21]3 years ago
4 0

Answer:

A

Step-by-step explanation:

12x² - 7y² - 10x² + y² = 12x² - 10x² - 7y² + y²

                                 = (12 - 10)x² + (-7 + 1)y²

                                  = 2x² + (-6y²)

                                  = 2x² - 6y²

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Largest volume in terms of r =  4r^3π/ 3√3 or you could write it as  4√3r^3π/9.

Step-by-step explanation:

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4 years ago
Which of the following comparisons is correct?<br>-2 2<br>4&lt;−4<br>−6&lt; −5
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<h3>Answer: Choice D)   -6 < -5</h3>

================================================

Explanation:

Let's go through the answer choices

  • A) This is false because -2 is actually larger than -5. Make a number line and you'll see that -2 is to the right of -5. Numbers on the right are larger than numbers on the left.
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  • C) Also false. It should be 4 > -4. Any positive number is always larger than any negative number.
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3 years ago
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Answer:

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Step-by-step explanation:

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