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At whats points does the graph of (t^2)+8t+7 intersect the x axis

Explain to the students what a one to many functions is which in this case is a quadratic, giving them an understanding of why there are two solutions, aided with the image of the quadratic.
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TD
Answered by Tutor133733 D. Maths tutor
3222 Views

Can you differentiate y = (x^4 + x)^10

To solve this equation we will need to apply the chain rule. This states that:dy/dx = dy/du * du/dxTo make the question simpler, we shall let u = x4+ x, and so:y = u10 and u = x...

SA
Answered by Shaan A. Maths tutor
4002 Views

I don't understand when I use the imperfect tense and when i should use the perfect tense!

The imperfect and perfect tenses are the two main past tenses used in french but it can be a bit tricky knowing when to use each one!I find that the easiest way of thinking about it is to think of the imp...

RF
Answered by Ruth F. French tutor
2248 Views

Explain the key steps in mitosis.

Mitosis is the way in which cells divide. Once one cell has undergone DNA replication, it contains 2 sets of chromosomes (diploid). Once mitosis has occurred, there will be two identical haploid...

AG
Answered by Amy G. Biology tutor
2970 Views

How can I differentiate prokatyotic and eukaryotic cells?

The main difference between these two cell types is that eukaryotic cells have their DNA collected inside the nucleus, while prokaryotic cells lack nuclei. Instead, they have a circular piece of DNA calle...

OA
Answered by Omar A. Biology tutor
3766 Views

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