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How can I evaluate the extent to which increased competition leads to higher levels of economic efficiency?

Keeping all other factors fixed, increased competition will make the demand curve that firms face flatter due to increased elasticity of the demand. By drawing a diagram depicting a firm's costs and reven...

Answered by Rebecca S. • Economics tutor

2056 Views

Calculate the rate of change of d(t )=2/(3t), t ≠ 0, when t=6.

When a question asks for rate of change, this means you need to differentiate the equation. First you need to put the equation into differentiable a form ie, with the no variables on the denominator: f(t)...

Answered by Lucy I. • Maths tutor

2407 Views

Answer quadratic equation in the simplest surd form/ exact from. 5-2x-x^2=0

5-2x-x²=0x²+2x-5=0 (moving everything over to the other side)then using the quadratic formula (to use a whiteboard during interview)a=1, b=2, c=-5x=(-2 +/- √(2^2 - 4x1x-5))/(2x1)x=(-...

Answered by Seun O. • Maths tutor

3769 Views

Que pourrait-on faire pour réduire la pollution?

D'après moi, il faut agir vite pour réduire la pollution et sauver notre planète. Toutes nos petits gestes éco-citoyens aideront lutter contre la pollution sans cesse. Par exemple, il faut éteindre les lu...

Answered by Harry P. • French tutor

2275 Views

An exoplanet, 0.01% the mass of the Sun, orbits a star 2 times the mass of the Sun at a distance of 1AU = 1.5x10^8 km. Using Newton's Law of Universal Gravitation, determine the force between the exoplanet and the star. Mass of Sun = 2x10^30kg.

This question is not particularly tricky as long as it is read carefully.
First, calculate the masses of the Star and the Exoplanet. Double the mass to find the star mass (M). To find the planet mas...

Answered by Thomas R. • Physics tutor

2132 Views