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An ultrasound wave is a soundwave with a frequency higher than 20,000 Hz

So I would begin by minusing 5 from both sides and that will give you 3x - 5 ≤ 4x. Then we want to gather our x's onto one side, so I would '-3x' from both sides which leaves you with - 5 ≤ 4x - 3 x, s...

If you have read and understood the text you are studying, you will be able to identify key scenes/chapters with that character present. Once you have identified those key scenes, which should be made ...

J'avais

German has the same way of forming the future tense as English - using will. In German, the verb used is werden, which can also mean to become. To form the future tense, you ...