300 g of an unknown radioactive substance decays to 112 g after 180 seconds. What is the half-life of this substance? ight now that the noobs are gone, any late nigh peeps still awake?

x = 25/2304

step-by-step explanation:

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step-by-step explanation:

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pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

may i see the picture? it would a lot, xox