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Convert the hexadecimal '3E', which represents a 2's compliment binary number, in decimal.

Firstly, represent the 3 16 and E 16 as 2 four bit binary numbers (known as nibbles). Once we have this (0011 and 1110 respectively), we can then combine them back together, into one 8-bit 2's compliment bin...
JB
Answered by John B. • Computing tutor
7447 Views

The area of square ABCD is 10 cm^2 . Show that x^2 + 6x = 1 (requires diagram which I will draw on the whiteboard).

The area of a square is the length of one side squared (multiplied by itself), so for a square with side length 3, the area will be 3 2 or 3 x 3, which = 9. For a square with side length x, the area will be ...
ML
Answered by Matilda L. • Maths tutor
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How do I solve simultaneous equations? Such as 2x + 4y = 8, 3x + 2y = 8.

There are two easy ways to solve simultaneous equations. Substitution and elimination. In order to work with substitution we must rearrange one equation to be equal to either x or y. In this case, 2x+4y=8, c...
CT
Answered by Cameron T. • Maths tutor
8612 Views

Describe the structure of DNA

DNA is a nucleic acid. Nucleic acids are made up of 3 base units: a 5 carbon sugar (for DNA this is deoxyribose), a phosphate and a nitrogenous base. The phosphate group is covalently bonded to the 5th carbo...
BM
Answered by Bethanie M. • Biology tutor
4695 Views

Integrate the function y = 2x^2 + 3x + 8 with respect to x.

Answer = 2x^3/3 + 3x^2/2 + 8x + CThis is an example of numerical integration from C1. To begin to answer this question, we can integrate each term at a time. To integrate this function, we raise the power of...
MC
Answered by Michael C. • Maths tutor
4774 Views