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When and how to use the passé composé and the imperfect tenses in french?

Usage:In French, if you want to talk about an action which occured and which has completed; for example 'Jake ate the apple', you would use the passé composé. This is a specific event which has taken place. ...
JH
Answered by Jacob H. • French tutor
7127 Views

Define the term ‘infant mortality rate and suggest why ‘infant mortality rate’ is a useful development indicator.

Infant mortality rate is the number of babies who die before the age of one per thousand live births per year. Infant mortality rate shows how countries survival rates vary due different stages of developmen...
PG
Answered by Polly G. • Geography tutor
17813 Views

A musical instrument produces a sound wave with a frequency of 1000 Hz. The sound wave has a wavelength of 0.34 m in air. Calculate the speed of the sound wave in air.

From the equation for speed: Speed = frequency * wavelength => v = 1000 * 0.34 = 340 metres per second
LD
Answered by Laura D. • Physics tutor
16369 Views

Write down two reasons for using statistical models

There are many reasons for using statistical models. Some examples include: 1) To simplify a real world problem To improve understanding and describe a real world problem, for example understanding the relat...
LD
Answered by Laura D. • Maths tutor
12808 Views

The triangle ABC is such that AC=8cm, CB=12cm, angle ACB=x radians. The area of triangle ABC = 20cm^2. Show that x=0.430 (3sf)

From the equation of the area of a triangle, Area = 1/2 AC CB sin(C) 20 = 1/2 * 8 *12 * sin(x) => sin(x) = 0.416666... => x = 0.430 to 3sf
LD
Answered by Laura D. • Maths tutor
7757 Views