Given:
The power generated by an electrical circuit (in watts) as a function of its current x (in amperes) is modeled by

To find:
The current which will produce the maximum power.
Solution:
We have,


Differentiate with respect to x.

...(i)
To find the extreme point equate P'(x)=0.


Divide both sides by -30.

Differentiate (i) with respect to x.

(Maximum)
It means, the given function is maximum at x=4.
Therefore, the current of 4 amperes will produce the maximum power.
Answer:I think it is 73 degrees
Step-by-step explanation:
Answer:
The answers to the questions are;
B. increases.
C. inelastic; increase.
Step-by-step explanation:
The price elasticity of demand for a linear demand in absolute value curve becomes smaller and smaller as we move downwards of the curve.
When the price elasticity of demand is calculated along a linear demand curve. This is so as for each pair of points at which the price elasticity of demand is calculated, the quantity demanded and the price change are somewhat similar, but as we move towards the top of the demand curve, the high prices and the low quantities shows the increase in demand elasticity.
Also in the inelastic region, as it can be shown by the areas of the rectangles formed by to adjacent price points, increase in price, increases the total revenue.
Answer:
those are my answers
Step-by-step explanation:
The relative are fraction is
1. yes
2.yes
3. no
4.yes
24
x
^2
+
54
x
+
21,
if you would like me to explain how to do it, I can in the comments.