4.1. The two wattmeter method is applied to a three phase 160 V system with meters connected to lines Red and blue. \( W_{R}=850 \mathrm{~W} \) and \( W_{B}=-520 \mathrm{~W} \). Find the impedance of the balanced delta connected load. 4.2. The Input power to a three phase motor is measured by two wattmeter method. The readings were \( 7,2 \mathrm{KW} \) and \( -2,8 \mathrm{KW} \) and the line voltage was 500 V . Calculate 4.2.1 The power factor. 4.2.2. The line current.

(1) Suppose that a cell dehydration model satisfies the differential equation, \( \frac{d W}{d t}=-k W^{2 / 3} \) Assume that the volume of the water in the cell is inltially \( W(0)=8 \mathrm{~mm}^{3} \). Also, assume that the volume of the water has decreased to \( w(6)=1 \mathrm{~mm}^{3} \) after 6 hours

Schreibe auf, warum die Zahlen zueinander passen

Solve the following inequalities. Graph the solution sets of \#1-5. 1. \( x^{2}-8>2 x \) 2. \( (x-3)(3 x+2)>0 \) 3. \( (2 x+3)(x-9)<0 \) 4. \( (x-2)(5 x-2)>0 \) 5. \( x(x-6)<0 \) 6. \( (5 x-4)(x+3)>0 \) 7. \( (2 x+5)(x-2)>x-4 \) 8. \( (2 x-3)(x+2)<(x+3) \) 9. \( x^{2}+5 x-6<0 \) 10. \( 2 x^{2}+6 x-7<0 \)

A line passes through the point \( (5,-11) \) and has slope of -2 . Find an equation of this line. \( y=-2 x-1 \) \( y=5 x-2 \) \( y=5 x-11 \) \( y=-2 x-11 \)

b) for the following systems fornts, if theg exist tind the equilibrium \( a_{n+1}=\int\left(2 a_{n} \ln e\left[\frac{4 a_{n}+4}{a_{n}+2} \times\left(\frac{1}{1}\right.\right.\right. \)