Answers by visitors named: vishal

solve by molarity =no. of moles divide by volume in litres....... so let the mass be in x grms... then : 2.50*0.630=x grms so, x grms of KCl =1.575 grams is the answer

Factor the following polynomial completely. -x2y2 + x4 + 9y2 - 9x2

The normal stresses at a certain point in a body are 80MPa tension and 50Mpa compression. There are also shear stresses across the plane of tension and compression equal to 30MPa.Calculate the maximum direct stress and maximum shear stress in the material.

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yes

ntyjhyt

U= (-3/4)x-7/3 Thus a perfect negative correlation between u and x So correlation between u and y= (-0.6*(-3/4)/(-3/4)= 0.6

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