Answer:
no
Step-by-step explanation:
The set of perfect squares includes {0, 1, 4, 9, 16, 25, ...}.
Subtracting a couple of the elements, we get ...
4 - 1 = 3 . . . . not a member of the set
The set is NOT CLOSED under subtraction.
Answer: something in the negatives
P=a+b+c. To find the area of a triangle, we need to know its base and height. ... Name. Choose a variable to represent it. Let x= the measure of the angle. Step 4.
-45 over 1 or -0. 45 over 1
