Answer:
Step-by-step explanation:
the radius is half the diameter:
7/2 : 2 = 7/2 x 1/2 = 7/4 cm
the circumference is:
diameter x π = 7/2π cm
the approximate circumference is
7/2 x 3,14 = 10,99 cm
Answer:
True
Step-by-step explanation:
You're claiming that every set is a subset of itself.
That's trivially true, because

requires that every element of A is also an element of A, which is tautologically true.
Answer:
option C

Step-by-step explanation:
we have

using a graphing tool
see the attached figure N
The range is the interval--------> (-∞,8]

case A) 
using a graphing tool
The range is the interval--------> [-8,∞)

case B) 
using a graphing tool
The range is the interval--------> [8,∞)

case C) 
using a graphing tool
The range is the interval--------> (-∞,8]

case D) 
using a graphing tool
The range is the interval--------> (-∞,-8]

Answer: f (-2 -5) f (1 4)
Step-by-step explanation:
Answer:
The answer to your question is: (∞ , 3]
Step-by-step explanation:
Remember that to express an inequality, are used ( ) and [ ].
( ) are used when the point is not consider in the interval.
[ ] are used when the point is consider or is part of the interval.
Also, an empty point indicates that the number is not consider in the interval.
and, a filled point indicates that the number is consider in the interval.
For your question, the interval will be:
(∞ , 3]