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Let X1 & X2 have joint pmf p(x1, x2)=(x1x2)/36. 0 otherwise Find joint pmf of Y1=X1X2 and Y2=X2? 6g of Mg in 16g of O2 are burnt. Calculate mass of MgO formed.? If 5sinθ = 3 determine the value of:
1. cos (θ-360)
2. Tan (squared)θ
3. Sin θ x cos θ (all divided by cos (squared θ)? How many moles of ions are in a solution of 7.4 moles FeCI3 in 500 mL water? Which pattern of speciation is most important in nature? Allopatric or sympatric why?