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Dmitry [639]
3 years ago
12

X^{2m+n} * x^{n-m} / x^{m+2n}

Mathematics
2 answers:
Alik [6]3 years ago
7 0

Answer:

\boxed{1}

Step-by-step explanation:

x^{2m+n} * x^{n-m} / x^{m+2n}

When bases are same for exponents in division, subtract exponents.

x^{2m+n} * x^{n-m-(m+2n)}

x^{2m+n} * x^{n-m-m-2n}

x^{2m+n} * x^{-n-2m}

When bases are same for exponents in multiplication, add exponents.

x^{2m+n+-n-2m}

x^{2m+0-2m}

x^0

Any base with power or exponent of 0 is 1.

x^{0}=1

notka56 [123]3 years ago
3 0

Answer:

=x

Step-by-step explanation:

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The sum of the digits of a certain two-digit number is 7. Reversing its digits increase the number by 9. What is the number?
Elis [28]
Let the two numbers be x and y.

According to your question;

x + y = 7
10y + x = 10x + y + 9

By equation 1 ; x = 7-y

Substituting the value of x ;

10y + ( 7 -y) = 10(7-y) + y + 9

9y + 7 = 70 -10y + y + 9

9y + 7 = 70 - 9y + 9

=> 18y = 70 -7 + 9
=> 18y = 72
=> y = 4

Substituting for x ;

x = 7 - y
=> x = 7 -4
=> x = 3

Thus, x = 3 and y = 4;
=> The number is 34.
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3 years ago
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{\red\star}\:{\underline{\underline{\mathfrak{\purple{hello}}}}}\:{\red\star}

140x = 8400

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Mrs. Margul paid $125 to have her hair colored and cut.If she tips her hairdresser 15%, what is her total bill?
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A rectangular field has dimension of 91 feet by 60 and 1/3 feet what is the area of the field
Oliga [24]

Answer:

Area = 91*\frac{181}{3}=5490\frac{1}{3} square feet

Step-by-step explanation:

The area of a rectangle is given by the formula:

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Before we do the multiplication, we have to change the mixed number [width] into an improper fraction by using the rule shown below:

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Area = 91*\frac{181}{3}=5490\frac{1}{3} square feet

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