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What are the 4 main valves in the heart, and where are each of them located?

Mitral valve and tricuspid valves control blood flow from the atria to the ventricles. Mitral on the right side, and tricuspid on the left side of the heart

Aortic valve controls blood flow between...

Answered by Harriet P. • Human Biology tutor

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y = 3x^2 + 2x^(1/2) - 12 Find dy/dx

Firstly we divide up the equations into its three compenents based on the powers of the x values, giving us 3x^2, 2x^(1/2) and -12. Now one at a time, we multiply the coefficient by the power of x, and th...

Answered by Sam R. • Maths tutor

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Solving 2tan(x) - 3sin(x) = 0 for -pi ≤ x < pi

The first step to answering this question is to get the equation in a simpler form. Aim to have it solely in terms of sin(x) and cos(x) with no fractional parts. ...

Answered by Benjamin A. • Maths tutor

21668 Views

What are the events that lead to synaptic transmission between two neurons?

There are three compartments to consider- the presynaptic neuron, the synaptic cleft and the postsynaptic neuron. In a classical excitatory synapse: 1. An action potential arrives at the presynaptic neuro...

Answered by Holly H. • Biology tutor

3682 Views

Take the polynomial p(x)=x^4+x^3+2x^2+4x-8, use the factor theorem to write p(x) as two linear factors and an irreducible quadratic. An irreducible quadratic is a quadratic that can not be factorised.

We must use the factor theorem since that is what the question asks. So we take p(x) and think about the factors of 8 we then evaluate it at x=1 to start, then move onto x=-1,2,-2 and so on. We see that i...

Answered by Jordan C. • Maths tutor

4429 Views