Multiply the demand values by the weights and report the sum.
0.15×3,500 +0.20×3,800 +0.25×3,500 +0.40×4,000 = 525 +760 +875 +1600
= 3,760
The weighted moving average forecast for the 5th period is 3,760.
Okay all you have to do is complete the square of the x and y's
so divide the coefficient of x by -2, then square it all and minus the square of the coefficient of x
hence (x-3)^2 - 9
then do the same for y
(y-4)^2 - 16
so (x+3)^2 + (y+4)^2 = 36
the radius is the root of the 36 so 6, and the centre is (-3,-4) because it's whatever would make the (x+3) or (y+4) equal to 0
800.5 ( 2 * 10^6 )
800.5(2 * 1000000 )
800.5 * 2000000
= 1601000000.
In 60 minutes, the machine can sew 300 buttons. The machine sews 5 buttons a minute. 60 x 5 = 300
