Answer:
x=-11\5+13\5i-iy
y=ix+(13\5+11\5i)
Step-by-step explanation:
x+yi=-7+3i\2+i
x+yi=\frac{\left(-7+3i\right)\left(2-i\right)}{\left(2+i\right)\left(2-i\right)}
x+yi=-11\5+13\5i
x=-11\5+13\5i-yi
x=-11\5+13\5i-iy
x+yi=\frac{-7+3i}{2+i}
x+yi=\frac{\left(-7+3i\right)\left(2-i\right)}{\left(2+i\right)\left(2-i\right)}
x+yi=\frac{-11+13i}{5}
x+yi=-\frac{11}{5}+\frac{13}{5}i
yi=-\frac{11}{5}+\frac{13}{5}i-x
\frac{iy}{i}=\frac{-\frac{11}{5}+\frac{13}{5}i-x}{i}
y=\frac{-\frac{11}{5}+\frac{13}{5}i-x}{i}
Answer:
y=7/-1x-2
Step-by-step explanation:
Answer:
w = 16.875 inches
Step-by-step explanation:
Given that the ratio of the length to width in a full-size cello is approximately 8 to 3.
This will be a constant for all cellos
Using the above we can find out length if we know width and vice versa.
Here we know the length = 45 inches
Since 
BY cross multiplication we find that
8w = 3(45)
Or w = 16.875 inches
Verify:
Let us check our answer by comparing with proportion
l/w = 45/16.875 = 8/3
Hence our answer is right
Answer:
A) 4*4x-4*3 and 16x-12
B) 12y+15y and 27y
Step-by-step explanation:
For A when you do the distributive property, you get:
4(4x-3)
4*4x-4*3 (which is one of the choices)
16x-12 (which is one of the choices)
For B when you combine like terms, you get:
12y+5y+10y
12y+15y (which is one of the choices)
27y (which is one of the choices)
