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1 answer:
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Answer: Inconsistent.
Step-by-step explanation:
The equation of the line in Slope-Intercept form is:
Where "m" is the slope and "b" is the y-intercept.
Solve for "y" in each equation:
<em>Equation 1</em>
<em>Equation 2</em>
<em> </em>
<em> </em>
You can notice that the slope of the <em>Equation 1 </em>is:
And the slope of the <em>Equation 2 </em>is:
Observev that , then you can conclude that the lines are parallel and the System of equations has No solution.
When there is no solution the classification of the system of equations is: "Inconsistent".
<em> </em>
Answer:
Resister of 0.15 W is to be added.
Step-by-step explanation:
In a given circuit we have the attachments
A power supply of 12 V
High intensity LED with forward voltage = 4.5V
LED is rated to withstand a maximum current of 20 mA or
We have to calculate the size of a resister to be connected in series.
Here we will apply the Ohm's law for the calculations
Total voltage of the circuit = voltage of LED + voltage across resistance.
r = (12 - 4.5)/20.10^{-3}
r = 7.5×10^{3}/20 = 375 ohm
Therefore power of the resistance = i².r
= 0.15 W
Therefore a resister of 0.15 W is to be added.