Answer:
yes, 18 is a polynomial
Step-by-step explanation:
We have to show whether 18 is a polynomial or not
Polynomial is an expression involving variables and constants such that variables having non negative integer power.
Example 
etc,
Thus, yes 18 is a polynomial
as 18 can be written as 
where 
and 0 is non negative integer,
Thus, yes 18 is a polynomial as it can be written as having non negative integer power 0.
Answer:
25
Step-by-step explanation:
3x+2x+55=180
5x+55=180
5x=180-55
5x=125
X=125/5
X=25
So the value of X is 25
Answer: 52.7856cm
Step-by-step explanation:
Circumference of a circle = 2πr
Note that radius = Diameter / 2 = 16.8/2 = 8.4cm
Circumference = 2πr
= 2 × 3.142 × 8.4
= 52.7856cm
Therefore, the circumference of the circle is 52.7856cm
Answer:
OH MY GOD I NEEED HELP WITH QUESTION TOOOOOOO
3 < x < 13
This is because the sum of two sides must be greater than the length of the third side.
