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m_a_m_a [10]
3 years ago
10

Solve x2 = 12x - 15 by completing the square. Which is the solution set of the equation?

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
8 0

Answer:

(6-√21,  6+√21)

Step-by-step explanation:

x^2 - 12x = -15

(x - 6)^2 - 36 = -15

(x - 6)^2 = 21

x - 6 = ± √21

x = 6  ± √21

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3 years ago
Sum interior angle on a regular pentagon
Sophie [7]

Answer:

540°

Step-by-step explanation:

Formula: note that n means nr of sides

(n-2)×180°

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2 years ago
You get a 27% discount on a sweater that is $18 sales tax is 8.4% how much is it after text total cost
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3 years ago
Order the following numbers from greatest to least: 7.321, 7.3, 7.065, 7.65
Slav-nsk [51]

The order for the given decimal numbers, from the greatest to the least, is: D. 7.65, 7.321, 7.3, 7.065.

<h3>How to Order a Set of Decimal Numbers?</h3>

When considering the order of a set of decimal numbers, the value larger the digit that is close to the decimal point, the larger the decimal number, and vice versa.

Given the following set of decimal numbers, 7.321, 7.3, 7.065, 7.65.

Notice that all decimal numbers start with 7. So, the digit close to the decimal point is what we will consider to determine which decimal number is greater or the least.

The decimal number that has the greater digit that is close to the decimal point is, 7.65, followed by 7.321, then 7.3.

The decimal number with the least digit closer to the decimal point is 7.065.

Therefore, the order for the given decimal numbers, from the greatest to the least, is: D. 7.65, 7.321, 7.3, 7.065.

Learn more about order of decimal numbers on:

brainly.com/question/20603315

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6 0
2 years ago
How many pages will you have read after the 6 nights
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168 pages

Step-by-step explanation:

each night you read 28 pages, so 6 nights you have to read for 28x6=168 pages.

6 0
2 years ago
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