<span>use De Moivre's Theorem:
⁵√[243(cos 260° + i sin 260°)] = [243(cos 260° + i sin 260°)]^(1/5)
= 243^(1/5) (cos (260 / 5)° + i sin (260 / 5)°)
= 3 (cos 52° + i sin 52°)
z1 = 3 (cos 52° + i sin 52°) ←← so that's the first root
there are 5 roots so the angle between each root is 360/5 = 72°
then the other four roots are:
z2 = 3 (cos (52 + 72)° + i sin (52+ 72)°) = 3 (cos 124° + i sin 124°)
z3 = 3 (cos (124 + 72)° + i sin (124 + 72)°) = 3 (cos 196° + i sin 196°)
z4 = 3 (cos (196 + 72)² + i sin (196 + 72)°) = 3 (cos 268° + i sin 268°)
z5 = 3 (cos (268 + 72)° + i sin (268 + 72)°) = 3 (cos 340° + i sin 340°) </span>
-1 because it goes from quadrant 4 to quadrant 2
Answer:
459.2 liters.
Step-by-step explanation:
Let us convert our given amount of rolled oats and water in deciliters.
1 liter = 10 deciliters
19 liters = 19*10 deciliters = 190 deciliters.
46 liters=46*10=460 deciliters
Now let us find weekly consumption of oats and water by multiplying daily consumption of both items by 7.
Let us convert weekly consumption of water and oats into liters.
Therefore, total weekly combined consumption of oats and water is 459.2 liters.
Answer:
24x+8+−10x+5
Step-by-step explanation:
Do distributive property.
4*6x=24x
4*2=8
5*2x=10x
5*-1=-5
So 24x+8+−10x+5 is your answer.
Answer:
-12a2 + 9a - 5
Step-by-step explanation:
the 2 should be small
