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A roll of card has an area of 43 m^2. A postcard has an area of 125 cm^2. How many post cards can be cut from the roll, assuming there is no wastage? (calculator question)

This question is assessing your knowledge of units and their conversion. Notice that the area units of the roll of card and the postcard are different, so it is important that before we carry out any calcula...
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Answered by Hafsah G. • Maths tutor
3494 Views

What is the difference between the Perfect (Passé Composé) and Imperfect (Imparfait) tenses?

The perfect and imperfect tenses are both used to describe the past, but in different situations. The perfect tense is used to describe a completed action in the past, for example, what you did this morning ...
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Answered by Katie S. • French tutor
3335 Views

The point P, (-1,4) lies on a circle C that is centered about the origin. Find the equation of the tangent to the circle at point P.

The most important fact to remember with this question is that two perpendicular straight lines have gradients related by m 1 = -1/m 2. This can then be used to find the gradient of the tangent by first find...
JA
Answered by James A. • Maths tutor
5175 Views

Solve "x^2 - 12x - 45 = 0" by completing the square

The equation is of the formx 2 +bx+c=0This means it can be rearranged to(x+(b/2)) 2 =(b/2) 2 -cTaking the square root of both sides leaves us with x. x 2 -12x-45=0(x-(12/2)) 2 -(12/2) 2 -45 = 0(x-6) 2 -6 2 -...
EJ
Answered by Elsa J. • Maths tutor
7132 Views

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 connect...
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Answered by Elliot L. • French tutor
3389 Views