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Maths
GCSE

What is the value of 64^(2/3)?

The index is 2/3 so first of all we can separate this and begin by looking at the 1/3. Fractions as indices mean that you must root the number, in this case we must cube root it because of the 3 in the de...

SQ
Answered by Sinead Q. Maths tutor
7892 Views

Work out the value of 2^14 ÷ (2^9)^2

214 ÷ (29)2 = 214 ÷ 218 = 2-4 = 1/(24) = 1/16
(9x2=18) (14-18=-4) ...

HG
Answered by Hannah G. Maths tutor
7996 Views

Sketch the graph of y = 5 - 7x

The key points with graph sketching are to think about the shape of the curve, any turning points, and the intercepts with the y- and x- axes. This curve is linear in x, and is therefore a straight line (...

JA
Answered by Jonah A. Maths tutor
3213 Views

How do you calculate arc length and sector area and why is it calculated like this? You are given sector angle 40 degrees and radius 7cm and asked to give answers to 3sf.

A sector represents a fraction of a circle. The fraction depends on the angle of the sector, X, and the total angle in a circle which is 360, such that the fraction is x/360. In this case the fraction is ...

PK
Answered by Peter K. Maths tutor
5300 Views

Factorise x^2 - 14x + 49

(x - 7)^2

SK
Answered by Shikhar K. Maths tutor
3112 Views

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