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First of all you must differentiate this function, as this will give you the gradient function necessary to find the gradient at the point (4,16). To differentiate it you use the formula dy/dx= a...
When attempting a source question, we must take a two-fold approach. The first step is to read it once or twice in order to gauge an overall tone and argument: ...
Balancing means that you have the same number of atom on one side as you do on the other. The reason for balancing is because atoms are not lost or created during a reaction. Keep in mind that when you ba...
The relationship between velocity, frequency and wavelength is given by: v=fλ. In this case, we have: v=fλ1 and v=2fλ2 .Since the question states that the velocity is const...
To answer this question you need to write down and solve an equation. Let's call t a tin of soup and p, a packet. We have: 5t=1750 and 4t+3p=1490. We want to know how much is 3t+2p. 1. Isolate t to find v...
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