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myrzilka [38]
3 years ago
13

If u(x) = x5 – x4 + x2 and v(x) = –x2, which expression is equivalent to (U/V) (x)?

Mathematics
2 answers:
timurjin [86]3 years ago
8 0

Answer: C. -x^3+x^2-1

Step-by-step explanation:

Given Functions : u(x) = x^5 - x^4 + x^2

v(x) = -x^2

The expression equivalent to (u/v) (x) will be equivalent to \dfrac{u(x)}{v(x)} , since polynomials allows division.

\text{Now, }(u/v)(x)=\dfrac{u(x)}{v(x)}\\\\=\dfrac{x^5 - x^4 + x^2}{ -x^2}\\\\=\dfrac{x^5}{ -x^2}-\dfrac{x^4}{ -x^2}+\dfrac{x^2}{ -x^2}...........\text{Division law of exponents}\\\\=-x^{5-2}+x^{4-2}-x^{2-2}\\\\=-x^3+x^2-x^0\\\\=-x^3+x^2-1

Hence, (u/v)(x)=-x^3+x^2-1

lions [1.4K]3 years ago
3 0
Hello,

Answer C if x≠0


(x^5-x^4+x²)/(-x²)=-x²(x^3-x²+1)/x²=-(x^3-x²+1)=-x^3+x²-1

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The option (C) Mus. Apt. = -22.26 + 0.4925(IQ score) is correct because the value of slope is 0.4925 and y-intercept is -22.26.

<h3>What is the line of best fit?</h3>

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2}

\rm c = \dfrac{\sum y -m \sum x}{n}

We have data shown in the picture.

Let's suppose the regression line is:

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Where m is the slope of the regression line and c is the y-intercept of the line.

We can calculate the value of m and c by using the formula.

After calculating, we get:

m = 0.4925

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Mus. Apt. = 0.49253(IQ score) - 22.26

or

Mus. Apt. = -22.26 + 0.4925(IQ score)

Thus, the option (C) Mus. Apt. = -22.26 + 0.4925(IQ score) is correct because the value of slope is 0.4925 and y-intercept is -22.26.

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3 years ago
Factories fully. X to the power of three - x
spayn [35]

The expression x³ - x when factored out is x(x -1)(x + 1)

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From the question, we have the following expression that can be used in our computation:

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Express the expression properly

So, we have the following representation

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