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Find the equation of the straight line passing through the origin that is tangent to the curve y = ln(x).

Firstly, recognise the relevant equations. The two functions are y = mx and y = ln(x). As the straight line is a tangent, we know that at a certain point x₀, the functions and ...

Answered by Paul S. • Maths tutor

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What type of blood does the pulmonary artery contain?

Deoxygenated blood

Answered by Kirushanth S. • Biology tutor

2363 Views

An extract of DNA contains 4000 base pairs. The extract is identified to contain 300 guanine bases. How many adenine bases can be found in the DNA extract?.

3700

Answered by Kirushanth S. • Biology tutor

2273 Views

Explain how the physical properties of water enable organisms to survive over a range of temperatures.

Water has a very high specific heat capacity due to the collective forces of the many hydrogen bonds. A lot of energy goes into breaking these bonds rather than raising the temperature of the water, hence...

Answered by Arunima B. • Biology tutor

22787 Views

What are the 2 methods used to manufacture ethanol? What are the advantages and disadvantages of both?

The hydration of ethene: Ethene and steam are passed over a catalyst - concentrated phosphoric acid (H₃PO₄) - at 300^OC and 60-70 atmospheres. This process is fast, continu...

Answered by James P. • Chemistry tutor

8918 Views