Answer:
See the step-by-step explanation
Step-by-step explanation:
Let c be any element of C. (I'm not sure wether you have to assume that C is non-empt or not)
C is a subset of B. That means that as c is in C, it is also in B. ()
Now, B is a subset of A. It follows that as .
That means c is an element of A. The predicate Q is true for all elements of A, including c.
Because we let c be any element of C, we have proven that the predicate Q is true for all elements in C.
Answer:
0.0735
Step-by-step explanation:
0.105×0.7=0.0735
Answer:
23
Step-by-step explanation:
2x+14+x+7=90, 3x+21=90,3x=90-21. 3x=69, x=23
Answer:
false i think
Step-by-step explanation:
Answer:
A expression is a number, variable, or a combination of numbers and variables and operation symbols. A equality is a relationship between 2 quantities or more . Hope it helps:)))
Step-by-step explanation: