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Describe stage 4 of the Demographic Transition Model.

The Demographic Transition Model (DTM) shows how birth and death rate affect population.  Stage 4 of the model is called the 'low fluctuating' stage and reflects the current situation of EMDCs such as Fra...

SP
Answered by Saul P. Geography tutor
30352 Views

Find the exact solution, in its simplest form, to the equation 2ln(2x+1) - 10 = 0.

We want to "undo" every step of the equation until we have just x on one side. So first add 10 to each side and then divide both sides by 2 to give ln(2x+1) = 5. Take the exponential of each sid...

EB
Answered by Eleanor B. Maths tutor
5654 Views

Describe an action potential.

A stimulus excites a neuron by causing the opening of sodium channels.
This causes an influx of sodium which causes the opening of other voltage-gated sodium channels.
This causes the membrane...

MK
Answered by Maciek K. Biology tutor
5907 Views

What is cracking and how is it done?

Cracking of CRUDE OIL is the breakdown of long-chain hydrocarbons (produced from fractional distillation) to shorter-chain hydrocarbons, which are more economically useful. 

Long chain hydroc...

MK
Answered by Maciek K. Chemistry tutor
3647 Views

Differentiate y = 2e^(2x+1)

Hint: Use the chain rule

Answer: dy/dx = 4e^(2x+1)

MG
Answered by Matt G. Maths tutor
5790 Views

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