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VikaD [51]
2 years ago
5

Help please

Mathematics
1 answer:
Digiron [165]2 years ago
7 0

Answer:

Option C.

Step-by-step explanation:

Shortest way to solve this question is to find the factors of the given expression.

The given expression is (x² + 13).

Now we have to factorize it.

(x² + 13) = x² + (√13)²

            = x² + [-(i)²√(13)²]  [Since i = √(-1)]

            = x² - (i√13)²

            = (x - i√3)(x + i√3) [Since (a² - b²) = (a + b)(a - b)]

Option C will be the answer.

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Hey there!

To start, first subtract 45 from 60 to find the amount of money taken off from the discount:
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Because 15 dollars have been taken off the original price, you can find the percent of discount by setting up this proportion where x represents the percent of discount:
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Now, cross multiply and solve for x:
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Therefore, your discount would be 25%.

Hope this helps and have a marvelous day! :)
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<u>Step-by-step explanation:</u>

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            ∧                        ∧

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