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Vous écrivez un article sur l'importance des réseaux sociaux pour votre blog.

De nos jours, les réseaux sociaux jouent un rôle extrêmement important pour les jeunes et aussi pour les adultes. Pour les jeunes, les sites en ligne comme Facebook et Twitter sont essentiels pour se conn...

Answered by Elliot L. • French tutor

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Describe and explain the adaptions of the human alveoli in making gas exchange efficient

Gas exchange can be made efficient in three main ways: shortening the diffusion distance, increasing the diffusion speed and increasing the surface area of the diffusion surface. The alveoli in the human ...

Answered by Eloise G. • Biology tutor

3995 Views

Why does the enzyme Maltase catalyse only the hydrolysis of maltose.

The active site of the enzyme has a specific tertiary structure. The active site is complementary to the substrate maltose. Therefore

Answered by Keegan S. • Biology tutor

5157 Views

Express 8/((root3) -1)) in the form a(root3) +b, where a and b are integers.

You would multiply both numerator and denominator by the expression (root3 +1)/(root3 +1). This expression is equal to 1 hence the original expression remains unchanged. The new expression is now (8(root...

Answered by Shubham K. • Maths tutor

6691 Views

How do I expand (x-2)(3x+3) into a quadratic?

The expansion of two brackets containing two terms each is a little more complicated than expanding say, x(3x+3). There is a process to follow for these questions. First, just look at the x term in the fi...

Answered by William P. • Maths tutor

4049 Views