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Describe the difference between respiration and breathing.

Respiration - the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP (the currency of energy in...

Answered by Shivani S. • Biology tutor

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how would you expand quadratic factors

Using the crab method draw lines from each term in the first bracket to the terms in the next bracket only once ensuring the lines do not crossover. A crab like claw should appear, add terms of the same p...

Answered by Ricken P. • Maths tutor

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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/d²
substituting:4=k/10²
4=k/100
400=k
d=nx²
substituting:24=n x 2²

24=4n
n=6
Eq1:y=400/d²
Eq2:...

Answered by Abi I. • Maths tutor

14023 Views

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 alloca...

Answered by Abi I. • Sociology tutor

27899 Views

The perimeter of a right-angled triangle is 72 cm. The lengths of its sides are in the ratio 3 : 4 : 5. Work out the area of the triangle.

Consider a right angled triangle, it has perimeter of 72cm. Let's label the three sides a, b and c.Therefore, a + b + c = 72cm.Also, we know that a:b:c = 3:4:5Therefore we can say that a = 3x, b = 4x, c =...

Answered by Dilan A. • Maths tutor

2826 Views