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y is inversely proportional to d2 when d = 10, y = 4 d is directly proportional to x2 when x = 2, d = 24 Find a formula for y in terms of x. Give your answer in its simplest form.

y=k/d 2 substituting:4=k/10 2 4=k/100 400=k d=nx 2 substituting:24=n x 2 2 24=4n n=6 Eq1:y=400/d 2 Eq2:d=6x 2 y=400/(6x 2 ) y=400/36x 4 y=200/13x 4
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Answered by Abi I. • Maths tutor
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Discuss how far sociologists agree that the main function of the education system is to serve the needs of the economy. (12 marks)

The first paragraph focuses on the theme of role allocation in a specialised economy: School is known to select and sift people for different levels of jobs meaning it's a major method of role allocating. Th...
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Answered by Abi I. • Sociology tutor
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Discuss measures to reduce an imbalance in the current account?

One way a government might try and reduce an imbalance in the current account is by using contractionary fiscal policy· Reducing government spending and increasing taxes· By reducing government spending, you...
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Answered by Dilan A. • Economics tutor
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Integrate Sin^2(x)

(using double angle formula)Sin^2(x)=1/2-(Cos(2x)/2) So the Integral is 1/2(x-1/2Sin(2x))which simplifies to x/2 - 1/2Sin(x)Cos(x)
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Answered by Alex R. • Maths tutor
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What does the light motif mean in Tennessee Williams' 'A Streetcar Named Desire''?

Light is generally seen as something that shows up the flaws in something – we use phrases like “holding something up to the light” to mean inspecting the genuineness of something, or talk about “shedding li...
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Answered by Cecily F. • English tutor
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