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3 years ago

What is the sum of the polynomials?

Mathematics

2 answers:

Inessa [10]3 years ago

7 0

-4x^2 - 11x + 13. :)

Nadya [2.5K]3 years ago

6 0

For this case we have the following polynomials:

$-x ^ 2 + 9\\-3x ^ 2 - 11x + 4$

Adding the polynomials we have:

$(-x ^ 2 + 9) + (-3x ^ 2 - 11x + 4)$

Rewriting we have:

$x ^ 2 (-1-3) - 11x + (9 + 4)$

Therefore, the result of the sum is:

$-4x ^ 2 - 11x + 13$

Answer:

the sum of the polynomials is:

$-4x ^ 2 - 11x + 13$

option 2

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The volume of a square pyramid is expressed as;

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Given that;

Base edges of the square base a = 64cm
Slant height s = 40cm
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First, we determine the height of the pyramid using Pythagorean theorem.

c² = a² + b²

c = s = 40cm
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Learn more about volume of pyramids here: brainly.com/question/27666514

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