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Solve y = 2x^2 - 5x - 1 for x = -1 and x = 2

y = 2 (-1) 2 -5(-1) -1y = 2 + 10 - 1y = 11y = 2 (2) 2 -5(2) -1y = 8 - 10 -1y = -3
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Answered by Anna B. • Maths tutor
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What is "Point-Evidence-Explanation (PEE)"?

"Point-Evidence-Explanation" is the basic structure that all good essay answers should follow. First you have the POINT, the argument that you want to make about a particular book, character, passa...
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Explain why an object moving around a circle is said to be accelerating when it has no resultant force acting upon it.

If an object has no resultant force acting upon it then it is moving at a constant speed. Acceleration is a vector quantity meaning that it includes magnitude and direction. When it is moving around a circle...
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Answered by Henry O. • Physics tutor
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Find the gradient of the line Y = X^3 + X + 6 when X = 4

Step 1: Differentiate the equation Y = X^3 + X + 6 to find the gradient of the line at any point. To do this, multiply each term of X by the old power and -1 from that power. This makes dy/dx = 3X^2 + 1.Step...
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Answered by Henry O. • Maths tutor
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Discuss Zimbardos contributions to research into conformity

Zimbardo conducted the Stanford prison experiment which was, arguably, one of the most renowned pieces of research in the field of conformity. Zimbardo allocated the role of either prisoner or prison guard t...
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Answered by Asia R. • Psychology tutor
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