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A rectangle has a total perimeter of 32cm with sides of length '3x' and 'x+8'. Solve for x.

3x + x+ 8 + 3x + x + 8 = 328x + 16 = 328x = 16x = 2

SP
Answered by Sai P. Maths tutor
2794 Views

What is osmosis and how does it differ from diffusion

osmosis is the movement of water Across a semi permeable membrane. Water molecules more from an area of high water concentration to an are of low water. This would bean water would move from an area where...

KF
Answered by Kathryn F. Biology tutor
2372 Views

Differentiate cos(2x^3)/3x

Using quotient rule y = u/v - dy/dx = (v.du/dx - u.dv/dx)/v2.u = cos(2x3) , a = 2x3. du/da = -sin(a), da/dx = 6x2. From chain rule, we know that du/dx = du/da ....

CW
Answered by Charlie W. Maths tutor
8594 Views

Identify the various structures in a reflex arc in the context of a pin prick. What is the end response and why is this beneficial?

Stimulus --> receptor --> coordinator --> effector --> response. Pin prick --> skin receptors --> sensory neurone --> relay neurone --> motor neurone --> effector muscle --> ...

SP
Answered by Sai P. Biology tutor
2292 Views

Differentiate x^2 ln(3x) with respect to x

This question requires the use of differentiation by product rule. First differentiate the first term, whilst keeping the second term the same, i.e. we get 2xln(3x). Secondly we keep the first term the sa...

RF
Answered by Ricky F. Maths tutor
12268 Views

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