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3 years ago

CRIIIIIIIIIIIIIIIIIIIIIIIIIIII

Advanced Placement (AP)

2 answers:

elena-14-01-66 [18.8K]3 years ago

4 0

Answer:

penetock and river let the water have potential energy

soldier1979 [14.2K]3 years ago

3 0

Answer: point x would have the greatest potential kinetic energy. (Point Y is probably the greatest kinetic-- moving-- energy)

Point W in the reservoir has the greatest potential energy.

Explanation: Potential Energy is stored in matter that is not moving yet.

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The equations of the tangent to the curve y=xsinx at the point (pi/2,pi/2) is

never [62]

The first thing you have to realize is that tangent is the slope of a curve on a given point. You can solve for the slope by finding the derivative of the given function. So:

$\frac{d}{dx} xsin(x)$

Next use product rule (I recommend watching videos if you're confused):

$= [sin(x)] + [x*cos(x)]$

Next substitute you x-value (π/2) into your derivative:

$= [sin( \frac{ \pi}{2} )] +[ \frac{\pi}{2}*cos( \frac{\pi}{2})]$
$= 1 + \frac{\pi}{2} *0$
$= 1$

So our slope at π/2 is 1. Next we use our slope-form and substitute our given value and solve for y-intercept (algebra-stuff)

$( \frac{\pi}{2}) = 1( \frac{\pi}{2}) + b$
$b = 0$

So we get our equation:

$y = x$

So our answer is E

Feel free to ask any questions.
Hopes this helps!

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3 years ago

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denis-greek [22]

Answer:

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Explanation:

When population growth was high and HDI was low there was a high rate of deforestation, but when HDI was high, rate of deforestation was low, despite high population growth. The correlation among variables was significant for the 1990s but not for the 1980s.

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3 years ago

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irga5000 [103]

Answer:

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