Answer:
1/2
Step-by-step explanation:
Answer:
About $1.86
Step-by-step explanation:
It could be rounded to $1.90.
Answer:
A(2,2)
Step-by-step explanation:
Let the vertex A has coordinates 
Vectors AB and AB' are perpendicular, then

Vectors AC and AC' are perpendicular, then

Now, solve the system of two equations:

Subtract these two equations:

Substitute it into the first equation:

Then

Rotation by 90° counterclockwise about A(2,2) gives image points B' and C' (see attached diagram)
1. D
2. E
3. B
4. Pentagon
5. C