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The perimeter of a regular decagon is 513m.
State the length of one of its sides.

Step-by-step explanation:

Decagon = 10-sided polygon

Perimeter of 10 sides = 513m

Perimeter of 1 side = 513m/10 = 51.3m.

30

step-by-step explanation:

times by times

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)