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What is the point of having a control group in a Psychological experiment?

A control group allows us to have a base recording that we can compare our experimental group to. A control group and an experimental group are treated in the same way except for the variable that we are man...
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How far does Shakespeare present Lady Macbeth as a powerful woman?

Within Shakespeare's supernaturally Gothic tragedy Macbeth, Lady Macbeth is frequently interpreted as a powerful woman. Not only is she able to control her husband, urging him to "screw his courage to t...
AB
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Expand x(x+4)

You must expand the brackets and then handle each section separately x multiplied by x = x^2 x multiplied by 4 = 4x answer is x^2 + 4x
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Answered by Tutor125675 D. Maths tutor
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The curve C has the equation: y=3x^2*(x+2)^6 Find dy/dx

To find dy/dx, we must use a combination of the Product Rule and the Chain Rule. If we let 3x^2=u and (x+2)^6=v, the Product Rule tells us that (uv)' = uv'+vu' u'=6x, but to find v' we need to use the Chain ...
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Answered by Sam H. Maths tutor
4352 Views

How to solve a quadratic equation?

There are several ways to solve a quadratic equation. 1.Quadratic formula ax 2 + bx + c = 0, where a can't equal 0 but b and c can.x = (-b± (b 2 - 4ac)) / 2a2. completing the square(x + b/2) 2 + c3. factoris...
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Answered by Alvaro M. Maths tutor
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