Answer:
-8i
Step-by-step explanation:
To multiply numbers is polar form
z1 = r1 ( cos theta 1 + i sin theta 1)
z2 = r2 ( cos theta 2 + i sin theta 2)
z1*z2 = r1*r2 (cos (theta1+theta2) + i sin (theta1+theta2)
z1 = 2(cos 70° + i sin 70°)
z2 = 4(cos 200+ i sin 200)
z1z2 = 2*4 (cos (70+200) + i sin (70+200)
z1z2 = 8 (cos(270) + i sin (270))
= 8 (0 + i (-1))
=-8i
1 divided by 1/4 equals four, I'm not sure what fraction strips are but just think about how 4 of 1/4 pieces of something would equal a whole because 4/4=1
Well this is easy. FOIL will help later on. For now (12-2) equals 10. Then add 12 and you get 22.
Brainliest answer you will see.
300%25x because 25 per each job which is xxx and 300 is how much she needs so total amount divided by amount needed
1. A
2. C
3. C
4. B
5. D
Im not 100% sure but I tried my best :) good luck.
