Select the postulate that is illustrated for the real numbers. 5•1=5
2 answers:
Answer:
Multiplication identity
Step-by-step explanation:
We are given that
We have to find which property of real number is used in given expression.
Multiplication identity: It is defined as the number by which multiply any number and get itself.
Then, 1 is multiplication identity.
When we are multiplying 5 with 1 then we get 5.
Therefore, 1 is multiplication identity.
Hence, multiplication property of real numbers is used in given expression.
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Answer:
Answer: 216 cm2 (square centimetres , in your question you had to put cm3, cubic centimetres, it's IMPORTANT )
Step-by-step explanation:
A perfect cube by definition has 3 equal dimensions, as an immediate rule: volume and total surface are equal, only the unit of measure changes (cubic for the volume, square for surface).
But let's calculate it anyway:
Volume = Edge * Edge * Edge = length * width * depth = (remember: all edges are equal in this case)
so Edge =
in your example Edge = = 6cm
So the surface of one side is 6*6 = 36
There are 6 sides in total, so the total surface is 6*36 = 216
Note: I call them "edges" but in case of a cube most say just "length"