Answer:
The answer is .
Step-by-step explanation:
First, it is important to recall that the group law is not commutative in general, so we cannot assume it here. In order to solve the exercise we need to remember the axioms of group, specially the existence of the inverse element, i.e., for each element there exist another element, denoted by such that , where stands for the identity element of G.
So, given the equality we make a left multiplication by and we obtain:
But, . Hence, .
Now, in the equality we make a right multiplication by , and we obtain
.
Recall that and . Therefore,
.
Answer:
X=84/21
Step-by-step explanation:
X/14=6/21
X=(6/21)(14/1)
X=84/21
The correct choice is the third one. Y=2/3x
Answer:-4
Step-by-step explanation:
-4 x -7 = 28
28-9=19
Answer:
The length of each side of the cube is
Step-by-step explanation:
we know that
The volume of a cube is equal to
but remember that in a cube
Length, width and height have the same value
so
Let
b-----> the length side of the cube
substitute in the formula
In this problem we have
substitute and solve for b
therefore
The length of each side of the cube is