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Briefly describe the mechanism of muscle contraction.

In muscle, myosin protein has 'heads' that act as cross-bridges as they bind to actin, another protein. When ATP binds to myosin, its head detaches from actin, swings forward and rebinds. Rebinding releas...

HG
Answered by Hester G. Biology tutor
10010 Views

Simplify: (3x+8)/5 > 2x + 1

  1. Multiply both sides by 5: 3x + 8 > 10 x + 5
  2. Move 3x to RHS by subtracting 3x from both sides: 8 > 7x + 5
  3. Move 5 to LHS by subtracting 5 from both sides: 3 > 7x
  4. Ma...
OD
Answered by Orlaith D. Maths tutor
4508 Views

Differentiate: 2(x^2+2)^3

This is a chain rule question. Unlike in ordinary differentiation we have more than just the single term 'x' with coefficient 1 raised to the power of something. e.g. x^3 Therefore, there is more steps. W...

CA
Answered by Charlotte A. Maths tutor
3326 Views

Sketch the graph of x^2+y^2-6x-4y=23

Firstly, to try and sketch this graph just going on the equation as it is above is a huge task for any maths student. The best way to approach this is to neaten it up with some algebra:

-1: x^2+y^2...

SA
Answered by Sam A. Maths tutor
8461 Views

Integrate the function f(x) = ax^2 + bx + c over the interval [0,1], where a, b and c are constants.

Firstly remember that d/dx(x^n) = nx^(n-1). And so the antiderivative, or integral of x^n, i.e. \int(x^n) = x^(n+1)/(n+1) + C (where C is the integration constant). When integrating with limits, i.e. when...

AA
Answered by Anvarbek A. Maths tutor
4989 Views

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