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a)Rearrange the folowing to make m the subject; 4(m-2) = t(5m+3)

(Question on topic of algebra taken from June 2016 OCR Past Paper)a) This question LOOKS like algerba and IS 100% algebra. We have 2 unknows that we treat just like we treat any number and we have to make m ...
SR
Answered by Stefania R. • Maths tutor
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What is 50 as a percentage of 20?

250%
LC
Answered by Luke C. • Maths tutor
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Simplify fully the fraction (a^2 + a − 6)/ (ab+3b)

so, let's split the fraction up, into the top half and the bottom half, and deal with each part at a time. The top part of the fraction (numerator) is a^2 +a -6 , and you can see that it is a quadratic equat...
SL
Answered by Sinchana L. • Maths tutor
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Differentiate (x^2)*(e^x) using product rule

Product rule: d/dx[f(x) g(x)]= f(x) d/dx[g(x)] + g(x) d/dx[f(x)]Let f(x)=x^2 and g(x)=e^xf'(x) = 2x and g'(x) = e^x Therefore,The derivative of (x^2) (e^x) = 2x (e^x) +(x^2) (e^x)
JB
Answered by John B. • Maths tutor
3355 Views

What is the size of the exterior and interior angle of a regular 13 sided polygon?

First of all select one vertex on the polygon and draw straight lines from the selected vertex to every other vertex on the polygon. In doing so this should divide the shape into 11 triangles. Using the know...
SH
Answered by Scott H. • Maths tutor
26711 Views