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nadya68 [22]
2 years ago
14

How many roots does the relation y = 4x² - 20x + 25 have? (2 marks)

Mathematics
1 answer:
Dovator [93]2 years ago
7 0

Answer:

it has one root x=2/5

Step-by-step explanation:

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Would you rather have a kilogram of quarters or a kilogram of dimes? Why?
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What are the materials for the following density (g/cm^3):
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matrenka [14]

Answer:

3. markup: $150

selling price: $300

4. markup: $19.20

selling price: $67.20

5. markup: $55

selling price: $165

6. markup: $90

selling price: $450

7. markup: $3.75

selling price: $16.25

8. markup: $7.14

selling price: $27.54

Step-by-step explanation:

To find the markup of an item you multiply the initial value of the item by the percentage it's being marked up by. To find the selling price, you add the markup to the initial value. Let's use question 3 as an example:

3. The recliner is being marked up by 100%. To find the markup, we can convert 100% into decimal form and then multiply it by the initial value 150:

100% = 1

150 * 1 = 150

The markup is 150.

To find the selling price we add the markup to the initial value:

150 + 150 = 300

The selling price is 300.

I applied this method to all of the questions.

8 0
3 years ago
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