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Find the exact value of dy/dx at (-2,4) of the curve C: 4x^2 -y^2 + 6xy + 2^y = 0

First notice that this is an equation that will require implicit differentiation since C cannot be explicitly written in terms of either x or y. Thus we must differentiate each term with respect to x:-the...

SD
Answered by Saskia D. Maths tutor
4593 Views

Suggest which particles will be emitted as K-40 decays to Ca-39:

As the proton number increases by 1 from 19(K) to 20(Ca), the process of decay must be beta minus in order to conserve charge. This means that an electron (or beta plus particle) will be emitted along wit...

LA
Answered by Luke A. Physics tutor
1927 Views

What is a case study and why might a psychologist choose to use this research method?

A case study is an in-depth analysis of the experience of an individual or small group. A psychologist might opt for the case study method if they are interested in individuals with very unusual and under...

RP
Answered by Roisin P. Psychology tutor
5527 Views

Maltase is an enzyme found in the body that breaks down maltose. Explain why maltase can only catalyse this reaction?

All enzymes have active sites which are highly specific to their role within the body- the active site being the part of the enzyme in which the enzyme and the substrate (the thing it is reacting with) in...

JH
Answered by Johanna H. Biology tutor
7853 Views

Describe how heart action is coordinated with reference to the SAN, AVN, and Purkyne Tissue, and explain the importance of the valves within the heart (8 marks)

The SAN (pacemaker) sends a wave of excitation across both atria. This triggers atrial systole, where both atria contract simultaneously. There is a time delay at the AV Node which al...

OB
Answered by Octavia B. Biology tutor
4837 Views

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