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Dmitrij [34]
3 years ago
14

The rectangle below has an area of 15x^3y^415x 3 y 4 square meters and a length of 3x^2y3x 2 y meters.What is the width of the r

ectangle?
Mathematics
1 answer:
Zina [86]3 years ago
8 0

Answer:

The width of the rectangle is 5xy^3.

Step-by-step explanation:

The area of a rectangle is the product of length and width of the rectangle.

A=length\times width

It is given that the area of the rectangle is 15x^3y^4 square meters and the length of the rectangle is 3x^2y.

15x^3y^4=3x^2y\times width

width=\frac{15x^3y^4}{3x^2y}

width=\frac{3\times 5\times x^2\times xy^3\times y}{3x^2y}

Cancel out common factors 3x²y.

width=5xy^3

Therefore the width of the rectangle is 5xy^3.

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  2. Dividing exponents of the same base: x^m\div x^n=x^{m-n}
  3. Powering a power to a power: (x^m)^n=x^{m*n}
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(2x^3y^7)^{-2}=2^{-2}x^{3*-2}y^{7*-2}=2^{-2}x^{-6}y^{-14}

Next, convert the negative exponents into positive ones:

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<h2>2.</h2>

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<u>Your final answer is 3x^6y^3</u>

<h2>3.</h2>

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<u>Your final answer is \frac{t^4}{r^7b^8w}</u>

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