The characteristic of a Null Matrix is :
A)All elements are = 0
C)First row = 0
D)First Column = 0
<u>Step-by-step explanation:</u>
Here we have , to tell which of the following are the characteristic of the null matrix :
Null Matrix : A null matrix is a matrix whose every element is zero ! for Example -
is a 3×3 matrix , i.e. 3 rows & 3 columns .
A)All elements are = 0
Yes, All elements of a Null matrix are equal to 0 .
B)All elements are negative
No , not even a single matrix entry is negative .
C)First row = 0
Yes, First row is equal to zero!
D)First Column = 0
Yes, First column is equal to zero!
Answer:

Domain: 
Step-by-step explanation:
Given

Required
Determine f(x) and its domain
To determine f(x), we replace 5x with x in f(5x)
So, we have:


Take LCM



To get the domain, we set the denominator as



Answer:
11.5758369028
Step-by-step explanation:
<em>So to solve for a variable, you have to isolate that variable onto one side.</em>
<h3>14.</h3>
Firstly, multiply both sides by j: 
Next, divide both sides by k and <u>your answer will be:
</u>
<h3>15.</h3>
Firstly, add g on both sides: 
Next, multiply both sides by 5 and <u>your answer will be:
</u>
<h3>16.</h3>
Firstly, subtract 5p on both sides: 
Next, divide both sides by 9 and <u>your answer will be
</u>
nothing can be further simplify in this problem