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'German aggression is to blame for the outbreak of World War One.' How far do you agree with this statement?

German 'agression', is repeatedly held up as the main reason for the outbreak of World War One. This is illustrated by the Schlieffen Plan of 1905-06 which aimed at annihilating armies on two fronts. Though ...
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Answered by Mariah D. • History tutor
6572 Views

SOLVE THE FOLLOWING SIMULTANEOUS EQUATIONS: 5x^2 + 3x - 3y = 4, -4x - 6y + 5x^2 = -7

Question: 5x 2 + 3x - 3y = 4, -4x - 6y + 5x 2 = -7.........Step 1: make the y-coefficient equal in both equarions: (y and not x because it has the lowest power so it is easier, but x would also work)...........
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Answered by Alonso M. • Maths tutor
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How does blood circulate through the heart?

De-oxygenated blood in the body returns to the right atrium of the heart through the superior and inferior vena cava. This blood is pumped through to the right ventricle , the tricuspid valves prevent any ba...
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Answered by Clarisse B. • Science tutor
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I do not understand how demand and supply work, can you please explain it to me?

Economics is the social science that studies the production, distribution and the consumption of goods and services. To explain this concept, we use the model of demand and supply, which is shown in a graph....
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Answered by Anya M. • Economics tutor
2537 Views

Use integration by parts to integrate ∫ xlnx dx

∫ u(dv/dx) dx = uv − ∫ v(du /dx)dx is the Integration by Parts formula. If you set u=lnx, differentiation (rememeber from tables) leads to du/dx= 1/x, and dv/dx=x and so v=x^2/2 (raise power by one then divi...
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Answered by Minty M. • Maths tutor
25714 Views