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KengaRu [80]
3 years ago
5

Simplify day 19 please

Mathematics
1 answer:
Genrish500 [490]3 years ago
3 0
The answer is approximately 11.18.
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Un número real no puede pertenecer a los racionales y a los irracionales a la vez?​
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Step-by-step explanation:

eso es cierto y correcto por supuesto, es tan obvio

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Which function is shown in the table below?
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2 years ago
Johnathan bought 10b of flour at $7.50. He had a store coupon for $0.79 what was the final price for the flour
tatuchka [14]

Answer:

10b= 7.50

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Step-by-step explanation:

4 0
3 years ago
Quotient + remainder <br> I need help I would have 20 points
nexus9112 [7]

We want to compute

\dfrac{-5x^4+4x^3-20x^2+15x-16}{-x^2-3}

The goal is to write it in the following form:

-5x^4+4x^3-20x^2+15x-16=Q(x)(-x^2-3)+R(x)

First step: How many "copies" of -x^2 does -5x^4 contain? We can write -5x^4=(-x^2)(5x^2), so the answer is 5x^2 copies.

If we distribute 5x^2 to -x^2-3, we get

5x^2(-x^2-3)=-5x^4-15x^2

If we were done, then this product would have matched the numerator at the start. But it doesn't; there are still some terms that need to vanish. In particular, we still have to account for

(-5x^4+4x^3-20x^2+15x-16)-(-5x^4-15x^2)=4x^3-5x^2+15x-16

Second step: How many copies of -x^2 can we find in 4x^3? Well, 4x^3=(-4x)(-x^2), so the answer is -4x. Then

(5x^2-4x)(-x^2-3)=-5x^4+4x^3-15x^2+12x

but this still doesn't match the original numerator. We still have to deal with

(-5x^4+4x^3-20x^2+15x-16)-(5x^2-4x)(-x^2-3)=-5x^2+3x-16

Third step: How many copies of -x^2 can we get out of -5x^2? -5x^2=5(-x^2). Then

(5x^2-4x+5)(-x^2-3)=-5x^4+4x^3-20x^2+12x-15

This also doesn't match the original numerator. We have a difference between what we have and what we want of

(-5x^4+4x^3-20x^2+15x-16)-(5x^2-4x+5)(-x^2-3)=3x-1

But we also can't divide 3x into chunks of -x^2, and we can't continue the division algorithm.

Our final answer would be

\dfrac{-5x^4+4x^3-20x^2+15x-16}{-x^2-3}=5x^2-4x+5+\dfrac{3x-1}{-x^2-3}

For the second problem, you should find

\dfrac{-15x^3-13x+4}{5x^2+2}=-3x+\dfrac{-7x+4}{5x^2+2}

4 0
3 years ago
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