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Solve the simultaneous equations: 4X+6Y=4 and 7X+5Y=12.5

There are two ways of solving this problem:
Method 1: substitution.
Make X (or Y) the subject of one equation: X= (4-6Y)/4
Substitute this into the other equation:...

SF
Answered by Sam F. Maths tutor
3210 Views

Explain two pieces of evidence for genetic explanations for criminal activity

One genetic explanation for criminal activity is candidate genes. Tihoen studied 900 offenders and found abnormalities on two genes associated with violent crime (MAOA which controls dopa...

ML
Answered by Maya L. Psychology tutor
4925 Views

A ship sets off on a bearing of 072 degrees from port and travels 3.4km in a straight line. How far north of the ship's starting position is its final position? Give your answer to two decimal places.

From SOHCAHTOA we choose CAH based on trianglecos(theta)= adjacent / hypcos(72)=x / 3.4
3.4cos(72)=xOn calculator find x=1.0506... =1.05 (2dp)

JM
Answered by Jessica M. Maths tutor
3434 Views

What is the difference between transcription and translation?

Transcription and translation are both part of protein synthesis; when we use the genetic code to make proteins. These words describe two different stages of the process:Transcription is when you use the ...

AG
Answered by Amelia G. Biology tutor
2468 Views

Is it true I can't prepare for the interview?

Many people say that the interviews are undertaken in a way that makes them 'impossible to prepare for' but from my personal experience, this isn't the case. The first thing you can do to prepare for the ...

AG
1360 Views

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