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Solve the simultaneous equations: y = 4x^2 - 9x - 1 and y = 5 - 4x

Subtract the second equation from the first, giving you: 4x^2 -5x -6 Factorise the quadratic: (4x + 3)(x - 2) x = -0.75 x= 2 Now substitute these values into one of the equations (or both, just to double-che...
DA
Answered by Damilola A. • Maths tutor
10774 Views

Why is it not '我是好'? In basic adjectival sentences, why is the copula verb 'to be' not used?

Take the simple sentence 'I am good' - 'I' is the subject, 'am' is the first-person of the verb 'to be', and 'good' is the adjective.In English, the verb 'to be' is needed in adjectival sentences to link the...
KY
Answered by Kwan Yee L. • Mandarin tutor
8361 Views

But how can we be sure that is what the author intended?

That's a really interesting point to raise. In short, I don't think we can, especially if the author has passed away. Looking at the text though, there are definitely hints pointing us to a certain message, ...
ML
6185 Views

What is meant by the term cross-media?

Cross-media refers to large media texts which are present on different media platforms simultaneously. The mix of each of these media forms contributed to the overall media text. For example, BBC News is a c...
LF
10247 Views

How can I improve on my listening skills?

Some of the listening questions can be tricky! The best thing to do is to practice at home. Find a playlist of classical music on spotify or youtube and put it on shuffle. Then try and write down as much as ...
LF
Answered by Laura F. • Music tutor
6853 Views