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A poor economy is at its steady state equilibrium. It is given a foreign aid package, to help it catch up with the developed world. Is this a good policy decision and why or why not?

As the production function remains the same, the economy has a temporary increase in output, but reverts back to its original steady state as the extra capital depreciates over time. This can be illustrat...

Answered by Silver K. • Economics tutor

1555 Views

décrivez vos vacances idéales

Un jour j'aimerais beaucoup visiter L'Egypte. Depuis avoir vu une exposition sur Tutankhamun, un des pharaon le plus puissant à exister, je rêve d'aller visiter les pyramides pittoresque et voir tout les...

Answered by Gabrielle W. • French tutor

3068 Views

A student titrated a solution of 25 cm3 of NaOH of concentration 0.1 mol/dm3 with H2SO4. She achieved four results; 25.8 cm3, 26.15 cm3, 26.25 cm3 and 26.45 cm3. Calculate the concentration of H2SO4 using concordant titres.

H₂SO₄ + 2NaOH → Na₂SO₄+ 2H₂O
Concordant titres: 26.15 cm³ and 26.25 cm³
Mean titre: (26.15+26.25)/2= 26.2 cm^3...

Answered by Shimin S. • Chemistry tutor

3891 Views

Solve n^2+n-90=0 to find the value of n?

Using the quadratic formula with a calculator a=1 b=1 c=-90 answers are n=-10 and n=9Factorising (n-9)(n+10)=0 answers are n=-10 and n=9

Answered by Asher L. • Maths tutor

8047 Views

Consider the curve y=x/(x+4)^0.5. (i) Show that the derivative of the curve is given by dy/dx= (x+8)/2(x+4)^3/2 and (ii) hence find the coordinates of the intersection between the left vertical asymptote and the line tangent to the curve at the origin.

The unsimplified form of the derivative can be obtained fairly easily with use of the quotient rule. The trick for simplification is to multiply top and bottom by (x+4)^0.5, this allows manipulation of th...

Answered by Seb R. • Maths tutor

3689 Views