Answer:
A.
Step-by-step explanation:
Given:
The regular polygon is a decagon having 10 sides.
Perimeter of the given polygon is,
.
We know that, perimeter of a regular polygon of sides is given as,
where, is the length of each side.
Here,
Plug in these values and solve for . This gives,
Therefore, the side length of the given polygon is
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)
A. subtract the bottom equation from the top equation
Step-by-step explanation:
The elimination method for solving systems of linear equations uses the addition property of equality. You can add the same value to each side of an equation. So if you have a system: x – 6 = −6 and x + y = 8, you can add x + y to the left side of the first equation and add 8 to the right side of the equation.
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Answer:
Yes
Step-by-step explanation:
Answer:
$10.00
Step-by-step explanation:
$200 x . 05 = $10.00