Average power dissipated in resistor

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(j30)I = (210 - j70)
I = -2.333 - 7j
I = 7.3786 A
Arms = 5.2175 A
P = 816.66 W
 
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Jesus thank you. Two pages of trying to figure out a simple mesh . . . Ugh . . .But 817 W is correct! Try number 1, 80% total on the homework.