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How would one multiply out brackets?

If asked to multiply out a set of brackets, one must remember to multiply each term in a set of brackets by every term in the other set of brackets. For example, (x+2)(x-4) = x 2 +2x-4x-8 = x 2 -2x+8. An inc...
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Answered by Alden R. • Maths tutor
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A right-angled triangle has an angle of 30 degrees and its hypotenuse has a length of 9cm. Find the length of either of the triangle's other two sides.

Please note that this solution is easier to explain with 2 diagrams The side opposite of the 30 degree angle: If we have the hypotenuse and require the length of the opposite side then we would use sin ( Soh...
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Answered by Ciaran B. • Maths tutor
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Describe how information passes across a synapse.

A chemical called a neurotransmitter passes from one neurone to the next causing an electrical impulse.
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Answered by Jordan H. • Biology tutor
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How do I begin tackling an unseen passage of Latin for translation into English?

Here's part of a passage taken from an OCR sample language paper: tum magna turba civium ad templum convenit atque ianuam lapidibus obstruxit ne Pausanias exire posset . deinde tectum deleverunt quod speraba...
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Answered by Ho Ting C. • Latin tutor
7700 Views

How can the UK government use fiscal policy to target inflation levels in the economy?

Fiscal policy is the adjustment of government spending and taxation to manipulate macroeconomic objectives, such as inflation. For example, if inflation is above the 2% (+/-1%) target set out by the Monetary...
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Answered by Daniel M. • Economics tutor
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