I need help quick please.
1. Find all the values of H such that the equation 3x2-2x + H=O has imaginary roots.
2.When a Current, C flows through a given electrical circut, the power, W of the circuit can be determined by the formula W= 120C - 12C2. What amount of current supplies the maximum power. And what is the maximum power that can be delivered in this circuit.
the 2 after the c and X means squared sorry don't know how else to do it.
Thank ou
the formula for power is a downward opening parabola. find the vertex of the parabola. the "x"-value gives the current and the "y"-value gives the maximum power
there are two ways to go about this:
1. For a parabola the vertex is given by:
so is the current and is the max power
2. Complete the square to get the quadratic in the form
when in this form, the vertex is given by
so is the current, and is the max power