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How do I solve two simultaneous equations?

Supposing we have two equations x+2y=5 and 3x-y=10 and we want to find x and y we can use the following techinque. Multiply both the RHS and the LHS of the second equation by 2, giving us 6x-2y=20. Then add ...
TX
Answered by Theano X. • Maths tutor
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What is the derivative?

The derivative is a measure of the rate of change of f(x) as x varies. Alternatively it is the gradient of the tangent at a specific point of the graph. There are different rules for finding the derivative d...
TX
Answered by Theano X. • Maths tutor
3858 Views

What is the Krebs cycle?

Photosynthesis has four stages: Glycolysis. The Link Reaction. 3. The Krebs Cycle. Oxidative Phosphorylation. Photosynthesis converts glucose from food into energy that the body can use called ATP. In the fi...
MS
Answered by Megan S. • Biology tutor
8005 Views

Explain, in the context of catalysis, the term heterogeneous and describe the first stage in the mechanism of this type of catalysis.

A heterogeneous catalyst a catalyst that is in a alternative phase/state to the reactants. The first stage of catalysis by a heterogeneous catalyst is absorption of the reactants onto the surface of the cata...
HB
Answered by Hugo B. • Chemistry tutor
3518 Views

Find the determinant of a 3x3 matrix.

Will need a whiteboard so I can draw a matrix to fully explain.
SM
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