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Cylinder A has the volume 8π cm^3 and the height 2 cm. Cylinder B is a similar shape with a volume of 216 cm^3. i) find the linear scale factor. ii) find the surface area of cylinder B

i) Linear scale factor cubed = volume scale factor = V_B/V_A= 216π/8π = 27 LSF³=27 LSF = 3 ii...

Answered by Jacob K. • Maths tutor

3537 Views

The function f is defined as f(x) = e^(x-4). Find the inverse of f and state its domain.

Firstly, we let y=f(x) so that y=e^x-4. The aim of this question is to find the inverse of y=f(x), and in order to do that, we must rearrange the question so that x becomes the subject of the eq...

Answered by Rutwik K. • Maths tutor

9193 Views

How can XOR be used in encryption and what type of encryption is this ?

As we know, XOR is a logical operator which can take 2 inputs and process one output. Given that two parties want to exchange this would be very useful. If A has message 1010 which may stand for "hel...

Answered by Ahmed A. • Computing tutor

1602 Views

What is mRNA splicing and why is it important?

mRNA splicing is a form of post-transcriptional modification of the mRNA transcript. DNA is made up of coding regions called Exons. These determine the amino acid sequence of a polypeptide chain during pr...

Answered by Katherine P. • Biology tutor

9131 Views

Explain why having more red blood cells per cm3 of blood is an advantage to an athlete. (3 Marks)

Red Blood Cells (RBC’s) contain haemoglobin. Therefore, more RBC’s results in more haemoglobin present.Haemoglobin carries oxygen, therefore, more oxygen can be transported to cells such as muscle cells.M...

Answered by Bradley-James G. • Biology tutor

20211 Views