we are given
f(x)=[x=1]
where bracket means ceiling functions
we know that
Ceiling function returns the least value of the integer that is greater than or equal to the specified number
so, we can check each options
option-A:

At x=-4:
f(x)=[-4-1] =-5
For x<-3:
Let's assume
x=-3.1
f(x)=[-3.1-1] =[-4.1]=-5
so, this interval is TRUE
option-B:

At x=-2:
f(x)=[-2-1] =-3
For x<-1:
Let's assume
x=-1.1
f(x)=[-1.1-1] =[-2.1]=-3
so, this is FALSE
Answer:
19000 8000 90000 60000
Step-by-step explanation:
Answer:
in between the ones and the tenths place
Step-by-step explanation:
so it would be in the ones place
Would it be a ratio, if it is it would most practically be 10:40 and if in simplest form it would be 1:4 or just you photo math