Top answers

Which prepositions take the dative?

Aus, bei, mit, nach, seit, von, zu, gegenueber.
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Answered by Sophie F. • German tutor
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A musical instrument produces a sound wave with a frequency of 1000 Hz. The sound wave has a wavelength of 0.34 m in air. Calculate the speed of the sound wave in air.

From the equation for speed: Speed = frequency * wavelength => v = 1000 * 0.34 = 340 metres per second
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Answered by Laura D. • Physics tutor
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A bag contains 12 bals of different colours: 5 red, 4 blue and 3 yellow. What is the probability of not selecting a red ball

The probability of an event not happening is 1 minus the probability of the event happening. Five of the twelve balls are red so the probability of selecting a red ball is 5/12. The probability of not select...
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Answered by Laura D. • Maths tutor
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How do I use PQA?

PQA stands for 'point, quote, analysis'. In a literary text, you may be asked to highlight the features which strenghten your essay's argument. To do so, it is best to first: 1) State the point you wish to m...
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Answered by Sophie F. • English tutor
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When would I use the conditionnel tense?

The conditionnel is used either as a form of politesse, to express a wish, to express a possibility, or an action completed with a condition.
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Answered by Sophie F. • French tutor
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