The answer is z = 3 + i
z = a + bi
conj(z) = a - bi
conj(7 + 3i) = 7 - 3i
<span>(conj)z + 2z = 2 + 4i + conj(7 + 3i)
</span>a - bi + 2(a + bi) =<span> 2 + 4i + 7 - 3i
</span>a - bi + 2a + 2bi =<span> 2 + 4i + 7 - 3i
</span>3a + bi = 9 + i
From here:
3a = 9 and bi = i
a = 9/3 b = i/i
a = 3 b = 1
z = a + bi
z = 3 + 1 * i
z = 3 + i
I'm going to show you step by step. I posted 2 pictures of the work
Solving for x
x=3/8m-5/4,m
Solving for m
m=10/3+8/3x,x
Answer:
8) $22
9) $33
Step-by-step explanation:
8) $75 to start, has 53 left. The difference of those is what he spent. 75 - 53 = $22
9) 165 divided equally in 5 months:
165 / 5 = 33
Answer:200
Step-by-step explanation:one batch of brownies needs 2 cups of sugar
multiply that by 100 youll get 200
