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3 years ago

Find the length of side x in the simplest radical form with a rational denominator.

Mathematics

1 answer:

fredd [130]3 years ago

7 0

I would help you but i don’t know sorry

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Which is true about the degree of the sum and difference of the polynomials 3x5y – 2x3y4 – 7xy3 and –8x5y + 2x3y4 + xy3?

tankabanditka [31]

Answer:

The option " The sum has degree of 6 , but the difference has a degree of 7 " is correct.

Step-by-step explanation:

Given that the sum and difference of the polynomials $3x^5y-2x^3y^4-7xy^3$ and $-8x^5y+2x^3y^4+xy^3$

<h3>Now sum the given polynomials :</h3>

$3x^5y-2x^3y^4-7xy^3+(-8x^5y+2x^3y^4+xy^3)$

$=3x^5y-2x^3y^4-7xy^3-8x^5y+2x^3y^4+xy^3$

$=-5x^5y+0-6xy^3$

$=-5x^5y-6xy^3$

Therefore $3x^5y-2x^3y^4-7xy^3+(-8x^5y+2x^3y^4+xy^3)=-5x^5y-6xy^3$

In the simplified <u>sum of the polynomials</u> $-5x^5y-6xy^3$ we have <u>the degree is 6</u>

<h3>Now difference the polynomials </h3>

$3x^5y-2x^3y^4-7xy^3-(-8x^5y+2x^3y^4+xy^3)$

$=3x^5y-2x^3y^4-7xy^3+8x^5y-2x^3y^4-xy^3$

$=11x^5y-4x^3y^4-8xy^3$

Therefore $3x^5y-2x^3y^4-7xy^3-(-8x^5y+2x^3y^4+xy^3)=11x^5y-4x^3y^4-8xy^3$

In the simplified <u>difference of polynomials</u> $11x^5y-4x^3y^4-8xy^3$ we have <u>the degree is 7</u>

Therefore the option " The sum has degree of 6 , but the difference has a degree of 7 " is correct

6 0

3 years ago

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Find the distance between the points (4, –2) and (0, 10).

madam [21]

$A(4,-2) \\B(0, 10) \\AB=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\AB=\sqrt{(0-4)^2+(10-(-2))^2} \\AB=\sqrt{16+144} \\AB=\sqrt{160}\approx\boxed{12.65} \\$

The answer is D.

Hope this helps.

r3t40

8 0

4 years ago

The diameter of the moon is 1/4 of the earth. find the ratio

Alexus [3.1K]

Earth is 4:1 and moon is 1:4of earth

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3 years ago

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PLEASE PLEASE PLEASE HELP WILL MARK BRAINLIEST

Paraphin [41]

Answer:

1) Perpendicular

2) Parallel

3) Neither

4) Neither

Step-by-step explanation:

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4 years ago

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Given that secant theta = Negative StartFraction 37 Over 12 EndFraction, what is the value of cotangent theta, for StartFraction

Alexxandr [17]

Answer:

B) -12/35

Step-by-step explanation:

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3 years ago

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