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What is the purpose of the Russian letter "ь" (мягкий знак; myahkiy znak)?

The letter "ь" is very important in the Russian language. Its purpose is to make the pronunciation of the preceding consonant soft. To illustrate, look at the Russian word "конь" (hors...

Answered by Nikita Z. • Russian tutor

6872 Views

I have trouble remembering which muscle contracts and which muscle relaxes during the Iris reflex; could you explain it to me?

The first thing to remember is that muscles always act in pairs; so when one contracts, the other relaxes. Think of the muscles in your arm; when you bend your arm towards you, the bicep contracts so beco...

Answered by Sumayya K. • Biology tutor

29092 Views

Le passé Composé (Present Perfect)

It can be translated with the present perfect or the simple past in English. It is used to indicate that an action in the past has been completed. In everyday language, the passé composé is also ...

Answered by Tutor174284 D. • French tutor

2366 Views

A curve passes through the point (4, 8) and satisfies the differential equation dy/dx = 1/ (2x + rootx) , Use a step-by-step method with a step length of 0.3 to estimate the value of y at x = 4.6 . Give your answer to four decimal places.

h dy/dx (4) = 0.03y(4.3) = 8+0.03 = 8.03y(4.6) = y(4.3) + 0.3 dy/dx(4.3) = 8.0581 to 4 d.p

Answered by Keni W. • Maths tutor

3699 Views

Describe how the guard cells surrounding the leaf pores are adapted to their role

unevenly thickened cell wall able to change shape / bendtransport proteins / ion pumps, in plasma membrane(presence of) chloroplasts (to provide, ATP / energy)

Answered by Faiza R. • Biology tutor

4994 Views