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Express 160 as a product of its prime factors

Divide 160 by 2 as many times as you can to get 80x2, 40x2x2, 20x2x2x2, 10x2x2x2x2, 5x2x2x2x2x2. Then re-write your answer so that it is 5x2^5. If you're struggling to divide by 2 and keep track of how many ...
RK
Answered by Rachel K. • Maths tutor
41753 Views

When do I use tu, when do I use vous?

First of all, you need to ask yourself the question: am I addressing one person, or more than one? If the answer is more then one, simple! You ALWAYS use vous because this is the plural form. If the answer i...
MB
Answered by Martha B. • French tutor
2518 Views

What is the difference between aerobic and non-aerobic respiration?

Aerobic respiration requires oxygen from the air, whereas anaerobic respiration does not. Aerobic produces Carbon dioxide and water, and the carbon dioxide exits through a gas exchange system in humans. Anae...
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Answered by Hannah W. • Biology tutor
6342 Views

Use factorisation to solve the equation x^2+5x+6=0

As we are considering a quadratic equation, we are looking for two values of x that make the equation equal to 0. To factorise, first look to the constant term (the term without any x) to find 2 numbers that...
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Answered by Niamh C. • Maths tutor
4301 Views

Describe how and explain why vegetable oils are hardened for use in foods

Vegetable oils are unsaturated because they contain lots of carbon-carbon double bonds. If we react them with hydrogen at 60oC in the presence of nickel catalyst they will become saturated, also called harde...
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Answered by Angus M. • Chemistry tutor
3049 Views