Answer:
1. Integer
2. Not an integer
3. Not an integer
4. Not an integer
5. Not an integer
Step-by-step explanation:
Integer - A whole number
So just search the list for whole numbers. If it is not a whole number, it is not an integer.
Answer:
-18
Step-by-step explanation:
You can basically just drop the plus sign and remove the parenthesis because the plus sign doesn't alter negatives.
-6+(-12)
-6-12= -18
Explecit formula
hmm, seems to be a geometric sequence
so
an=a1+d(n-1)
d=common differnce
a1=first term
given
a1=firstterm=9.2
and the difference between each tierm is 1.8
an=9.1-1.8(n-1) is da equation
so 4th option
The only rational root is -2.336071261738453
The other roots are complex (imaginary).
