Answer:
x is 6 because
y is 30
p is 120
Step-by-step explanation:
60 degrees and 10x are the same and 6×10 = 60
(4y) and 60 degrees must equal 180 so y has to be 30
(4y) and p are the same
Answer:
Because the coin is tossed 7 times and you get 2 outcomes (head or tail) for each one.
Nanometers are a really small measurement, one billionth of a meter, I believe.
So nanometers is used to describe tiny stuff, like atoms of a water molecule, and waves of light.
Answer:
3/20
Step-by-step explanation:
If you divide 3/4 by 5 you get 3/20
Answer:
See below.
Step-by-step explanation:
Addition: closed
Example: -5 + 10 = 5, and -5, 10, and 5 are all integers
Subtraction: closed
Example: 10 - 8 = 2, and 10, 8, and 2 are all integers
Multiplication: closed
Example: -4 * 7 = -28, and -4, -7 and -28 are all integers
Division: not closed
Example: 5/2 = 2.5, and 2.5 is not an integer, although 2 and 5 are integers
The set of integers is closed under addition, subtraction, and multiplication because any addition, subtraction, or multiplication of integers always results in an integer.
The set of integers is not closed under division because a division of integers does not always result in an integer.
