3. The answer should be : Yes, the number is written in scientific notation.
4. the answer is : Yes, the number is written in scientific notation.
5. The answer is option 3
Answer:
M(gradient) has to be found like:

Answer: gradient or slope is: -2.5
Order of Operation is the step by step procedure that you should follow when solving muti-step equations. Its usally abbreviated as:
P arathesis
Example: 2(5+4)
E xponents
Example: 4^8
M utiply
Example: 5x
D ivide
21/3
A dd
Example: 4+9
S ubtract
Example: 78-21
Answer: 
Step-by-step explanation:
Given
The complex number is 
Complex number in polar form is given by

Compare it with the given complex number
and
which implies
must be 
So, in the polar form, it is
