Multitasking systems . are easier to develop than single programming systems
execute each job faster
execute more jobs at the same time
are used only in large mainframe computers

Hypothesis: volumes of both figures are equal.the volume of  figure 1 is: .the volume of figure 2 is: .since , you can conclude that and . so, .volumes of figures are equal only when an angle in the basis is right (then figures will be the same), in another cases volume of figure 1 is less than volume of figure 2.the hypothesis was not correct in all cases.

Answerjudgment is the first mental ability to be affected by alcohol,and coordination is the first physical ability to be affected bu alcohol;                                         hope this