50=3x+b. you never specify the variable that replaces b
130 because 2 is less than 5
The height should be around 9.19 or 9.2 if you round it up.
(if you need an explanation as to why i would be happy to help as well!)
Answer:
it will be 175 / 100 = 7 / 4 okay
For complex number, the magnitude is pretty straight forward:
sqrt(6^2 + 2^2) = sqrt(40)
For any a + bi, the magnitude will be sqrt(a^2 + b^2)