Total impedence =
Z = R + (XL - XC) j
Z = 8 + 6j ohm (Polar form)
I = 100 <0/ 8+6j ( Complex mode on your calc)
I = 8 - 6j (shift 3 r<theta) = 10 < -36.87 A ( phasor)
VR = 100 < 0 * 8/(8+6j) = 80 < -36.87 v
VL = E - VR = 60 < 53.13
Pw = (Irms)^2 * R = (10)^2 * 8 = 800
Power delivered = -dissipated = - 800 Watt
I = Im sin(wt + theta ) , theta shift Im = sqrt(2) Irms
v = vm sin(wt + phi) , phi shift
I = 10sqrt(2) sin(2pi* 60 t -36.87)
VR = 80sqrt(2) sin ( 2 pi * 60 t -36.87)
VI = 60 sqrt(2) sin ( 2 pi * 60 t + 53.13)