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Sonja [21]
3 years ago
15

PLZ HELP W SOME AP CALC QUESTIONS WILL MARK BRAINLIEST

Advanced Placement (AP)
1 answer:
Nookie1986 [14]3 years ago
8 0

1) The complete table is shown in the attachment .

2) The direction field is shown in attachment.

3) The given differential equation is:

\frac{dy}{dx}  =  \frac{xy}{3}

We separate variable to get:

\frac{dy}{y}  =  \frac{1}{3} xdx

We integrate both sides wrt x to get:

\int \frac{1}{y} dy =\frac{1}{3} \int xdx

This implies that:

ln(y)  =  \frac{ {x}^{2} }{6}  +  ln(c)

y =k  {e}^{ \frac{ {x}^{2} }{6} }

Or

f(x) =k  {e}^{ \frac{ {x}^{2} }{6} }

We apply the initial condition:

f(0) = 4

4 =k  {e}^{ \frac{ {0}^{2} }{6} }

4 = k

The particular solution is:

y =4 {e}^{ \frac{ {x}^{2} }{6} }

4) See attachment

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Answer: The answer is: f(x) = 2x^2 + 40x + 200

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Length = Width * 2, so by substitution, Length = 2(x + 10)

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By substitution:

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Using the formula:

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