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We want to maximize U(x,y) subject to  the constraint M = px + qy, where M is monetary income and p,q are the prices of x and y respectively. Since this is a constrained optimization problem we can use th...

If there are 12 counters in a bag,each with colour either red, yellow or blue, we can say that the number of red counters, blue counters and yellow counters must add up to 12.R + B + Y = 12 ( R = No. of R...

She stayed there for two weeks

Some areas of coast, such as the 90 kilometer Purbeck coastline on the South coast of England are known as discordant coastlines. This means they have bands of rocks with alternating resistance, in layers...

The molecules move in random motion. Collisions of molecules with each other and with the walls are elastic (total kinetic energy stays constant). Time in contact is small compared with time between colli...