Answer:
A. The modulus is 5√2.
B. It lies in quadrant 3
Step-by-step explanation:
Given a complex value z = x = iy
The modulus is expressed as;
|z| = √x²+y²
Given the complex number z = -5 - 5i
|z| = √(-5)²+(-5)²
|z| = √25+25
|z| = √50
|z| = √25 * √2
|z| = 5√2
For the argument;
theta = arctan(-5/-5)
theta = arctan 1
theta = 45degrees
since tan is positive in the third quadrant, hence it lies in quadrant 3
24 - 27 = -3
<em>and if you meant 2/4 - 2/7 in scientic notation:</em>
<em />
<em>2/4 - 2/7 = 3/14</em>
HOPE THIS HELPS
Answer: 9)−3 /4 or -0.75
They can not, there are only 2 sides and they probably flipped it different ways. They got 'lucky'.
