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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 the...
AS
Answered by Amy S. Maths tutor
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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 + H 2 O Sodium hydroxide and hydrochloric acid react in a 1:1 ratio, so the number of moles of...
EF
11921 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 cal...
Answered by Biology tutor
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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 are ...
RM
3804 Views

What are the stages of mitosis?

I remember this by: I P eed on the MAT, C (read:see) Interphase- 90% of a cell's life is in this metabolic phase Prophase- chromatin condenses, nucleolus disappears Metaphase- chromosomes align at the equato...
MB
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