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Andreyy89
3 years ago
14

4a²-8ab+4b=???????????? ​

Mathematics
1 answer:
GuDViN [60]3 years ago
3 0

Step-by-step explanation:

4a² - 8ab + 4b²

= (2a)² - 2 * 2a * 2b + (2b) ²

= (2a - 2b) ²

Hope it helps :)

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Answer:

Well one do the square root of 16

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Please help! How on earth do I do this? In the year 2015, Anna bought a new car for $36,000. In 2017, she was told that the valu
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Part A

Purchase Value of Anna's Car in 2015 = $36,000

Depreciated Value of Anna's Car in 2017 = $25,000

We know that the value of the car is depreciating linearly.


From the above data, we can see that the value of the car has reduced by $36,000-$25,000 = $11,000 over 2 years.

⇒ Per year the value has been depreciated by \frac{11000}{2}

⇒ Per year the value has been depreciated by $5,500

So if the value of a car in 2015 is V₀ then value of the car after t years can be determined by the below function:

V (t) = V₀ - (t*5,500), where t indicates the years passed since 2015

OR V (t) = 36,000 - (t*5,500), where t indicates the years passed since 2015

Part B

Suggested value of Anna's car for trade in option in 2018 = $15,000

In 2018, 3 years would have been passed since 2015. Using the value of t = 3 in the function determined in Part A:

V(3) = V₀ - (3*5,500)

⇒ V(3) = 36,000 - (16,500)

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From the above calculations, we can see that the value of the car in 2018 should be $19,000, however the suggested value for trade in is indicated as $15,000 which is lower than what the value of the car should be. Hence, basis linear depreciation, the $15,000 value is not fair for the car in 2018.

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3 years ago
What is the least common multiple of 18, 16, and 9?
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Answer:

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you added 2/3 together three times to get two, so three is the answer.

Hope this helps!

4 0
3 years ago
Martinique an antwan had their bill at a restaurant reduced by $6 because of a special discount. They left a tip of $9.80,which
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Answer:

  $55

Step-by-step explanation:

Let b represent the original bill. The problem statement tells us ...

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Dividing by 20% gives ...

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Their bill before the discount was $55.00.

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<em>Comment on the tip</em>

It is generally considered better form to tip on the basis of the original bill before coupons and discounts.

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