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Airida [17]
3 years ago
14

Help me with this and I'll mark you as Brain

Mathematics
2 answers:
valkas [14]3 years ago
4 0
<h2><u>A is X^3 Y^2.</u></h2>

because 3 x's and 2 y's are being multiplied.

<h3>For this explanation, I will be utilizing the hidden exponent of 1.</h3>

<em><u>You can put a hidden exponent of 1 to each variable without an exponent, and the value will remain the same.</u></em>

Merely add the exponents of the values with the same base number, or coefficient. —> <em>like terms</em>

X^1 times X^1 times X^1 is X^3, and Y^1 times Y^1 is Y^2.

Our final answer is X^3 Y^2.

<h2><u>B is 6X^2 Y^3.</u></h2>

Like the first expression, we can add a hidden exponent to each <u>VARIABLE,</u> not number.

2 times 3 is 6, and X^1 times X^1 is X^2, and Y^1 times Y^1 times Y^1 is Y^3.

Our final answer is 6X^2 Y^3.

SSSSS [86.1K]3 years ago
3 0

Answer:

a) x^3y2

b) 6x^2y^3

Step-by-step explanation:

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\text{The formula of a perimeter of a rectangle:}\\\\P=2(w+l)\\\\\text{we have}\\w:l=3:2\to w=\dfrac{3}{2}l,\ P=55\ cm\\\\\text{substitute}\\\\55=2\left(\dfrac{3}{2}l+l\right)\\\\55=2\cdot\left(\dfrac{3}{2}l+\dfrac{2}{2}l\right)\\\\55=2\cdot\dfrac{5}{2}l\\\\55=5l\ \ \ \ \ |:5\\\\l=11\ cm\\\\w=\dfrac{3}{2}\cdot11=\dfrac{33}{2}=16.5\ cm\\\\Answer:\ b.\ 11\ cm,\ 11\ cm,\ 16.5\ cm,\ 16.5\ cm

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