Aregular polygon is drawn in a circle so that each vertex is on the circle and is connected to the center by a radius. each of
the central angles has a measure of 40°. how many sides does the polygon have?
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The number of sides the polygon have 9

Step-by-step explanation:

Given in question as :

For The circle ,  the central angles measure be 40 °

Let the number of sides of polygon =  n

Now . as we know

External angle =  

Or ,           40° =

Or, = 40°

Or, = 40°

So, n = = 9

Hence The number of sides the polygon have 9      Answer

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !