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What is the purpose of trying to achieve economic efficiency?

To ensure resources are not wasted.

Answered by Alejandra T. • Economics tutor

2825 Views

Solve the inequality 􏰂|2x + 1|􏰂 < 3|􏰂x − 2|􏰂.

(2x+1)²< 9(x-2)²4x²+4x+1 < 9(x²-4x+4)4x²+4x+1 < 9x²-36x+360 < 5x²-40x+35Apply quadratic equation solving formula (...

Answered by Alejandra T. • Maths tutor

9633 Views

List two primary and two secondary impacts of volcanic activity giving detail of each

Primary impacts are those that affect the area in close proximity to the volcano immediately after a volcanic event. A first impact is that of the release of tephra which is solid material that can range ...

Answered by Izzy F. • Geography tutor

14018 Views

3-Methylpent-2-ene (CH3CH=C(CH3)CH2CH3) reacts with Hydrogen Chloride(HCl) forming a major and minor product. Please name the reaction, draw the mechanism for the formation of the major product and briefly explain why there is a major and a minor product.

This is an example of electrophilic addition.(It's easier to explain with the mechanism drawn) The mechanism proceeds by electrophilic attack of the Hydrogen in HCl originating from the double bond in 3-m...

Answered by Edward H. • Chemistry tutor

12928 Views

How does smoking affect gas exchange in the lungs?

Firstly, think of what you already know about the structure of the lungs and how that makes them so effective at their job. (Elasticity, large surface area for gas exchange, high gradient and short diffus...

Answered by Esther E. • Biology tutor

6504 Views