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Quantitative and qualitative testing are important aspects to consider when selecting a material or materials for a specific product. Explain what you understand by each of these terms.

Quantitative testing is objective and can often be judged numerically. For example, 'The material must weigh no more than ......' is an example of a quantitative specification point.
Qualitative tes...

DD
3409 Views

A portable space saving football goal has been launched to promote sport and activities for 3 to 5 year old children. Describe the properties of ABS that make it a suitable material for the football goal.

It is strong and lightweight, and so can be taken apart and stored in a car boot etc. for transport. ABS has a glossy finish which means it requires not protection for indoor or outdoor use. It is a hard ...

DD
1875 Views

How to I prepare for a Cambridge interview?

If you got an interview you are already halfway there - congratulations! The interviewers liked your application and think you have potential, so your job during the interview is just to try to convey tha...

LG
1461 Views

Show that the lines y=3x+7 and 2y–6x=8 are parallel. Do not use a graphical method.

y=3x+7 2y-6x=8
2y-6x=82y=8+6xy= 4+3xy=3x+4When both equations equal y they both have a 3 in front of their x meaning that they both have a gradient of 3.

JM
Answered by Jordan M. Maths tutor
3036 Views

Curves C1 and C2 have equations y= ln(4x-7)+18 and y= a(x^2 +b)^1/2 respectively, where a and b are positive constants. The point P lies on both curves and has x-coordinate 2. It is given that the gradient of C1 at P is equal to the gradient of C2 at P.

y= ln(4x-7)+18 y= a(x^2 +b)^1/2
At x=2 dy/dx = dy/dx and y =y
At x =2 y = ln(8-7) +18 y = ln 1 +18 y =18
At x = 2 18=a(4 +b)^1/2 18/(4+b)^1/2= a
y=ln(4x-7)+18dy/dx= 4/(4x...

JM
Answered by Jordan M. Maths tutor
8829 Views

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