Answer:61 degrees.
Step-by-step explanation: If you look at Line MN you will see 103 degrees on the left side. A line is 180 degrees so 180-103=77. Angle P is corresponding with the angle above. Becuase you want to find 2, you have to subtract 77 by 16 to get 61 degrees
By multiplying and division
The heat produced by current I is
H = I²R
where
R = resistance.
According to the formula, heat produced is proportional to the square of the current.
When a current of I = 2 amps is applied, the heat produced is
H = 10x³ + 80.
This heat includes heat due to a fixed current of 2 amps, and heat due to a variable current of x amps.
Because the heat produced is proportional to the square of the current, write the expressions as
H = (10x)*(x²) + 20*(2²)
The second term on the right is heat due to the fixed current of 2 amps, written as
20*(2²).
Therefore the fixed resistance is R = 20 ohms, and the square of the fixed current is 2².
The first term represents heat due to variable resistance, written as
(10x)*(x²).
Therefore the variable resistance is 10x, and the square of the variable current is x².
Answer:
The variable current is 10x.
Answer:
Step-by-step explanation:
Let
We factor 2 to obtain;
We factor the polynomial within the parenthesis by grouping.
We apply difference of two squares on the second factor: 
We now compare to;
It is now obvious that
