Answer:
the answer is 5
Step-by-step explanation:
1.) a>10
2.) a<3.5
How I got it: 1.) Subtract 3 from both sides, leaving -2a<10.
2.) Divide by -2 from both sides, remember to flip the inequality sign when dealing with negatives. This leaves you with a>10.
For number 2.) I divided both sides by 5, leaving a<3.5, though this answer may be wrong.
Answer:

Step-by-step explanation:
Given
The attached triangle
Required
Find x
Considering angle 30 degrees,


Using the tangent formula:

Make x the subject




Given:
The complex number is:

To find:
The argument of the given complex number.
Solution:
If a complex number is
, then the argument of the complex number is:

We have,

Here,
and
. So, the argument of the given complex number is:




Therefore, the argument of the given complex number is
.