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How do barriers to entry help monopolies maintain power?

A monopoly is a firm with a majority market share in a particular industry. Barriers to entry are things that stop potential new entrants from entering the market, thus keeping competition in monopolistic ma...
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Answered by Navjyot D. • Economics tutor
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Explain the findings from Rutherford's alpha particle scattering experiment.

Rutherford's alpha scattering experiment showed that the majority of alpha particles fired at a thin sheet of gold leaf passed straight through. Some of the particles passed through the leaf with a small ang...
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Answered by James A. • Physics tutor
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Simplify: 2x +6y +2y - x

collect x terms together i.e.) 2x - X = 1x and then collect y terms together i.e) 6y + 2y = 8y add your two answers together to get: x + 8y Answer x +8y
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Answered by Sophie M. • Maths tutor
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What are SMART targets?

S- specific M- Measurable A- Achievable R- Realistic T- Time bound
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If a and b are the roots of the quadric polynomial 2x^2+6x+7 what are a+b and ab?

The phrase "a and b are roots of 2x^2+6x+7" is just a way of saying that x=a and x=b solve the equation 2x^2+6x+7=0. Check out that by diving by 2 on both sides of this equation we get that that x=...
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Answered by Guillermo C. • Maths tutor
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