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i) multiply out: 3x3+kx2-3x-21x2-7kx+21 simplify: 3x3+(k-21)x2+(-7k-3)x+21 the coefficient of x2 is 0 and therefore k-21=0 k=21.
ii)from i) the c...

The body has both humoral and cell mediated immunity. A vaccination involves injecting a patient with inert (Inactivated) or dead material from a pathogen, be that a bacterium or a virus. Once injected in...

7xy+3y2=10x 3y2=10-7xy 3y2=x(10-7y) 3y2/10-7y=x

In your opening section, you should begin by describing your core motivation for desiring to enter into your chosen course of study, this will give the admissions officer an immediate sense of your passio...

1. Deception was used in order to carry out the experiment. Participants were unaware of the confederates in the experiment and that they would always be assigned as a teacher and the confederate would...