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Cuáles fueron las consequencias sociales de la política china de hijo único?

La política china de hijo único fue introducido en China en 1979 como medida de control de la población. Mientras que durante este período, de hecho hubo una disminución en el crecimiento de la población, la...
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Answered by Amelia W. • Spanish tutor
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How does DNA replication occur in eukaryotes?

DNA replication involves a ‘complex system of enzymes'. DNA replication is semiconservative (1 stand of the original 2 stranded piece of DNA is conserved) It is a complex process involving many enzymes and w...
Answered by • Biology tutor
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Without expanding any brackets, work out the solutions of 9(x+3)^2 = 4

To solve for x first divide both sides by 9, giving the equation:(x+3) 2 = 4/9Then square root both sides, leading to:x+3 = +/- 2/3Finally subtract 3 from both sides leaving:x = -11/3 or x = -7/3
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Answered by Modestas T. • Maths tutor
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Explain why the use of petrol and diesel cars may be a source of market failure.

Pollution from petrol cars is an example of a negative externality (where the actions of one person impact another without the affected person being compensated). In a competitive economy people pay the &quo...
Answered by • Economics tutor
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Solve the simultaneous equations: 3x + y =11; 2x + y = 8

subtract one from the other to eliminate y: 3x+y=11; 2x+y=8 --> x=3 substitute value of x back in and solve for y : 3(3)+y=11; 9+y=11; --> y=2
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Answered by Israel H. • Maths tutor
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