Answer:
Here’s what I find.
Explanation:
The electrical coil on the stove provides heat energy (q).
This energy is used to
- heat the pan (q1)
- heat the water (q2)
- convert the water to steam (q3)
and some of the energy is wasted by radiation into the surroundings (q4)
The energy conservation would be
q = q1 + q2 + q3 + q4
The Cold War was the war between United States and Soviet Union following the WWII. After the defeat of the axis powers and the fall of Hilter, the Soviet Union possessed the world's largest enemy. The US possessed the most powerful weapon in the atomic bomb, which had just been dropped on Hiroshima and Nagasaki to defeat Japan. Both nations had allied with one another in the war to defeat their common enemy but this was merely a front to mask the contempt both had for one another. The cold war was the term used to describe the antagonism between democratic America and communist Soviet Union (Russia). While there was never any armed notion of conflict between both nation, the cold war was the battle of ideologies and was waged in nations all over the world between proxy nation. The US goal was to spread democragy throughout the world and Soviet Union's goal was to spread communism.
What’s the nest? Confused
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:

Next use
product rule (I recommend watching videos if you're confused):
![= [sin(x)] + [x*cos(x)]](https://tex.z-dn.net/?f=%3D%20%5Bsin%28x%29%5D%20%2B%20%5Bx%2Acos%28x%29%5D)
Next substitute you x-value (π/2) into your derivative:
![= [sin( \frac{ \pi}{2} )] +[ \frac{\pi}{2}*cos( \frac{\pi}{2})]](https://tex.z-dn.net/?f=%3D%20%5Bsin%28%20%20%5Cfrac%7B%20%5Cpi%7D%7B2%7D%20%29%5D%20%2B%5B%20%5Cfrac%7B%5Cpi%7D%7B2%7D%2Acos%28%20%5Cfrac%7B%5Cpi%7D%7B2%7D%29%5D%20%20)


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)


So we get our equation:

So our answer is E
Feel free to ask any questions.
Hopes this helps!