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kenny6666 [7]
3 years ago
12

Given that F(x) = x 2 + 2, evaluate F(2). 0 2 6

Mathematics
2 answers:
belka [17]3 years ago
4 0
Answer 6

2^2+2
4+2=6
Got it
Aliun [14]3 years ago
3 0

Answer:

The correct option is <u>C) 6</u>

Step-by-step explanation:

we need to calculate the value of function at x=2

The given function is F(x)=x^{2}+2

To calculate F(2), we replace 'x' with 2 in F(x)=x^{2}+2

F(2)=2^{2}+2

F(2)=4+2

F(2)=6

Therefore, the correct option is <u>C) 6</u>

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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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