The three-dimensional shape in the diagram on the right is a cube.
what is the degree measure of the angle at point b (the angle formed by ab and cb)?

Step-by-step explanation:

To answer this question, you should cut this cube and see these two square faces that these lines are drawed as I show on the upload...

These lines represents a 45º of angle and the sum of them is 90º.

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

c - they will have the same distribution

step-by-step explanation:

this is the only one that could make sense. : )