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givi [52]
2 years ago
15

F(y) = y² + 10y + 21 f'(2) = ? ​

Mathematics
2 answers:
Ahat [919]2 years ago
3 0

Answer:

14

Step-by-step explanation:

f'(2) = 2y + 10

f'(2) = 2(2) + 10

= 4 + 10

= 14

Temka [501]2 years ago
3 0
<h2>♪Answer : </h2>

»f(y) = y² + 10y + 21

  • Find f'(y) in f(y)

»f'(y) = 2y + 10 + 0

»f'(y) = 2y + 10

  • Find f'(2) in f(y)

»f'(2) = 2(2) + 10

»f'(2) = 4 + 10

»f'(2) = 14✅

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Answer: B.

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Step-by-step explanation:

Given that the side of a shape is x

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But if the shape is a square, and the side of the shape is x, then, the perimeter will be

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A movie collector has 105 movie posters and 90 band posters if she sells 21 movie posters then how many band posters should she
kotykmax [81]

Hi there! :)

<u>Answer:</u>

In order to maintain the same ratio, she should sell 18 band posters.


<u>Step-by-step explanation:</u>

<u>Initial ratio:</u>

Ratio is: 105 movie posters for 90 band posters = <u>105 : 90</u>


She sells 21 movie posters, which means that we are left with 105 movies minus the 21 she sold.

105 - 21 = 84 → She now has <u>84</u> movie posters.


In order to answer your question, you'll need to use the cross product method:

105 movie posters → 90 band posters

84 movie posters  → X

<u>(90 × 84)</u> ÷ 105 = X

<u>7,560 ÷ 105</u> = X

72 = X ⇒ Number of band posters she should have left to maintain the same ratio.

She has 90 band posters :

90 <u>- X</u> = 72

Add "X" to each side of the equation → 72 + X = 72 + X

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<u>18 = X</u>


There you go! I really hope this helped, if there's anything just let me know! :)

4 0
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