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3 years ago

A pair of pants with a marked price of 35.00 has a discount of 20%. how much is the discount

Mathematics

1 answer:

Marianna [84]3 years ago

8 0

The discount is $7.00

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Simplify this equation Thanks a lot!!!

den301095 [7]

Answer:

-1

Step-by-step explanation:

We need to simplify the given expression . The given expression is ,

$\rm\implies ( 2 \sqrt6 +5)^{2n-1} ( 2\sqrt6 - 5)^{2n-1}$

Here we can see that the power of the both exponent is same that is (2n+1) . Recall the property of exponents ,

$\bf\implies a^m \times b^m = (ab)^m$

Using this property , we have ,

$\rm\implies ( 2 \sqrt6 +5)^{2n-1} ( 2\sqrt6 - 5)^{2n-1}$

This can be written as ,

$\rm\implies\{( 2 \sqrt6 +5) ( 2\sqrt6 - 5)\}^{2n-1}$

Simplifying using ( a+b)(a-b) = a² - b² ,

$\rm\implies\{( 2 \sqrt6)^2 -5^2 \}^{2n-1}\\\\\rm\implies ( 24 - 25)^{2n-1}$

Subtracting the numbers inside the brackets ,

$\rm\implies (-1)^{2n - 1 }$

Now we know that every odd number is in the form of 2n -1 , where n is any integer. Therefore , the power is odd .

Since the base is (-1) , for even power it is 1 and for odd power it is -1 . Therefore the final answer is ,

$\rm\implies\boxed{\quad \red{ -1 }\quad }$

Hence the required answer is (-1) .

4 0

3 years ago

Tolong di jawab pertanyaan ini ya no 1 sampai 6

umka21 [38]

Que ldixldikxhskzjskjzss

5 0

3 years ago

Fine the area of a parallelogram with base b and height h. b = 82 cm h = 16.6 cm

Alona [7]

I just added an answer to a question exactly like that. The answer would be 1, 361.2. To find area you need to multiply the base and height together. Just think, b*h=a. Base times height equals area. Good luck!

3 0

3 years ago

Read 2 more answers

Least to greatest -.6 -5/8 -7/12 -.72

svlad2 [7]

It would be:

-.72 < -5/8 < -.6 < -7/12

4 0

3 years ago

Add. 8x^2-4x-3+5x^2-2x-6

jekas [21]

Answer:

13 x^2 -6x -9

Step-by-step explanation:

8x^2-4x-3+5x^2-2x-6

Combine like terms

8x^2+5x^2 -4x-2x -6-3

13 x^2 -6x -9

6 0

3 years ago