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Using Algebra show that part of the line 3x + 4y = 0 is a diameter of the circle with equation (x^2) + (y^2) = 25

To show that the line is a diameter of the circle you muct show that it goes through the centre of the circle1) finding the centre of the circle. The general eqn is (x-a) 2 + (y-b) 2 = r 2 , where r is the r...
EL
Answered by Emma L. • Maths tutor
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Nitric acid reacts with magnesium and fizzing occurs. Write a word equation and a balanced chemical equation for this reaction.

Acids react with metals to give a salt and hydrogen gas.Nitric acid + magnesium --> magnesium nitrate + hydrogen2HNO 3 + Mg --> Mg(NO 3 ) 2 +H 2
EC
Answered by Emma C. • Chemistry tutor
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Power: Is the ability project stakeholders has to influence the outcome of an organization, deliverables, or a project

Here, what you need to consider is the relative positions of different stakeholder groups. Interest : The level of concern or a stakeholding pary has over a project. These stakeholders may be most heavily ef...
IF
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What is the difference between an atom and an ion? Explain the difference between an Na (sodium) atom and Na+ ion.

An atom is a neutral particle, an ion is a charged particle.Taking a sodium ( 23 Na) and sodium ion (Na + ) as an example:Firstly, we need to break down both into their subatomic particles (protons, neutrons...
TD
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Describe and explain the process of transcription in protein synthesis.

Hydrogen bonds that link complementary DNA base pairs in the cell's nucleus break and exposes the bases.Free RNA nucleotides in solution combine with their complementary bases of the single DNA strand.A with...
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Answered by Nichola C. • Biology tutor
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