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blsea [12.9K]
3 years ago
9

PLZ HELP!!! WILL GIVE HIGHEST POINTS IF THE ANSWER IS RIGHT!!

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
8 0

Step-by-step explanation:

Standard polynomial is:

- 20 {x}^{3}  - 3 {x}^{2}  + 4x

Leading co effecient is:

-20

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Cameron's uncle is 3 times old as he is. 4 years ago, he was 4 times older. How old is Cameron?
erma4kov [3.2K]

Let Cameron be x years old now.

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<u>Now:</u>

Cameron = x

Uncle =3x

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<u>4 years ago:</u>

Cameron = x - 4

Uncle = 3x - 4

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<u>4 years ago, Uncle is 4 times older:</u>

3x - 4 = 4(x - 4)

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<u>Find x:</u>

3x - 4 = 4(x - 4)

3x - 4 = 4x - 16

4x - 3x = 16 - 4

x = 12

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<u>Find the age:</u>

Cameron = x = 12

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Answer: Cameron is 12 years old now.

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3 years ago
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Lelu [443]
Circular pen means you are going to use Area = Pi(r^2). 

So 78.5 = pi(r^2). Divide by pi on both sides to get r^2 = 78.5/pi. Take the square root of that to get r or radius = approximately 4.99. If you need an exact answer then use \sqrt{ \frac{78.5}{ \pi } } for the next part because you are not done yet.

Plug whatever R you use into the circumference formula of Circumference = 2(pi)(r).

If you use 4.99, you do 2(pi)(4.99) which is approximately 31.35. If you use the exact answer, you do 2(pi)(\sqrt{ \frac{78.5}{ \pi} }) which gives you approximately 31.41. 

Either way you'll need about 31 meters of chicken wire but the 31.40796 or ~31.41 is closer to the exact answer. 
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Answer:


Step-by-step explanation$10.70

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Answer:

The square is the next step

Step-by-step explanation:

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