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Find the two points of intersection of the graphs 2x+y=7 and x^2-8x+7=y. Solve using only algebraic methods (no graphical).

We treat this problem as two simultaneous equations, using our knowledge that when two graphs intersect, they simultaneously have the same solution. The second equation (quadratic equation) is already in ...

Answered by Amy S. Maths tutor
2707 Views

25cm3 of a 0.10moldm-3 solution of sodium hydroxide reacts exactly in a titration with 15cm3 HCl. What is the concentration of the hydrochloric acid?

First, write a balanced chemical equation to determine the ratio of the reacting species: NaOH + HCl --> NaCl + H2O Sodium hydroxide and hydrochloric acid react in a 1:1 ratio,...

Answered by Elizabeth F. Chemistry tutor
9654 Views

What is the role of a myelin sheath in neurones?

The role of the myelin sheath is to speed up the conduction of an action potential along neurones. It's made up of Schwann cells that wrap around neurones, forming an insulating layer with gaps inbetween ...

Answered by Biology tutor
2599 Views

What is the best way to approach studying a novel?

With any novel I would firstly advise that you have an extensive knowledge of the plot. For each chapter, as you read it, it may help to write yourself a short summary of what happened, which characters a...

Answered by Rachel M. English Literature tutor
2759 Views

What are the stages of mitosis?

I remember this by: I Peed on the MAT, C (read:see)Interphase- 90% of a cell's life is in this metabolic phaseProphase- chromatin conden...

Answered by Mitu B. Human Biology tutor
3256 Views

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