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How can we really know what the past was like?

Historians can never truly know what the past was like. This is why historians have different interpretations of the past and how it occurred. Having said this, historians can still form a detailed and co...

AR
Answered by Angus R. History tutor
3764 Views

Factorise x^2+5X+6

(x+3)(x+2)To check this, use the 'FOIL' (first, outside, inside, last) method to ensure the answer is correct.x^2+2x+3x+6x^2+5x+6

DB
Answered by Darius B. Maths tutor
1977 Views

Solve algebraically the simulations equations: x^2+y^2=25 and y-3x=13

x2+y2=25; y-3x=13; x2+(13+3x)2=25; x2+9x2+78x+169=25; 10x2+78x+144=0; 5x2+39x+72=0; (5x+24)(x+3)=0; x=-24/5 and y=-7...

NC
Answered by Nadia C. Maths tutor
3106 Views

A curve is defined by the parametric equations; x=(t-1)^3, y=3t-8/(t^2), t~=0. Find dy/dx in terms of t.

dy/dx=(dy/dt)*(dt/dx); dy/dt=3+16t-3; dx/dt=3(t-1)2; dt/dx=1/3(t-1)2; dy/dx=(3+16t-3)/3(t-1)2

NC
Answered by Nadia C. Maths tutor
3790 Views

Solve the following equation: x^(3) - 6x^(2) + 11x - 6 = 0

x3 - 6x2 + 11x - 6 = 0
Let (x-a)(x-b)(x-c) = x3 - 6x2 + 11x - 6=> abc = -6 and a + b + c = -6 From abc=-6, find the possibilities of their values: (1,2,...

EH
Answered by Ellie-May H. Maths tutor
6878 Views

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