Top answers

Solve the following simultaneous equations: 3x+y-2z = -2, y+4z = 1, 10x+2y+5z=26

x=3, y=-7, z=2
MP
Answered by Matthew P. • Maths tutor
4380 Views

Briefly desribe your hometown

J'habite dans la capitale française à Paris, elle est au nord de la France et dispose d'une importante réputation internationale. Avec 2,2 millions d'habitants Paris est connue comme la plus belle ville du m...
BG
Answered by Bily G. • French tutor
2158 Views

Suggest how globalisation increases migration flows towards megacities such as Shanghai (10)

Globalisation has allowed countries such as China to liberalise their trade in order to attract TNCs and foreign investment to increase their economic growth. This has led to the creation of EPZs (Export Pro...
PJ
Answered by Prerana J. • Geography tutor
4381 Views

Evaluate the impact of the increase in the number of public sector employees on the UK economy (12)

An increase in the number of public sector employees is likely to have two main benefits. DIAGRAM SHOWING AGGREGATE SUPPLY AND AGGREGATE DEMAND INCREASING, SIMULTANEOUSLY SHOWING AVERAGE PRICES AND REAL OUTP...
MM
Answered by Matthew M. • Economics tutor
3743 Views

Find all the cube roots of 1

Let z be a cube root of 1 such that: z^3 = 1 z^3 - 1 = 0 Factorise: (z-1)(z^2 + z + 1) = 0 Then, z=1, the real root, or: z^2 + z + 1 = 0 with z not equal to 1 Use quadratic equation: z = (-1 +- sqrt(1-4))/2 ...
OS
4929 Views