Top answers

How can I expand my french vocabulary?

Expanding your vocabulary in a language requires exposing yourself to different sources in french as much as possible! Choose an article online, it could be from a media outlet, such as Le Monde or Le Parisi...
LC
Answered by Lowri C. • French tutor
2579 Views

Using a method that is not factorisation, solve the equation (x^2) + 3x -4 = 0. Hence, sketch the curve produced by the equation

One method that could be used to solve the equation is using the quadratic formula given by:x = ( -b ± (b 2 - 4ac) 0.5 ) / 2a where ax 2 + bx + c = 0Substituting our values into the (b 2 - 4ac) 0.5 first giv...
JW
Answered by Joseph W. • Maths tutor
3160 Views

Initially, trucks A and B are travelling in opposite directions. A has mass 1000 kg and is travelling at speed 7ms^-1. B has mass 4000kg and is travelling at speed 2ms^-1. What is their speed and direction after collision if they move together?

The law of conservation of momentum states that for a system, under the influence of no external forces, the sum of the momenta of all objects, which are calculated by multiplying their masses and velocities...
Answered by • Physics tutor
2090 Views

Describe the process of annealing aluminium and explain the purpose of it.

Prepare the metal surface by rubbing it with a bar of soap. Place the metal against firebricks and use a gas torch to heat the metal surface evenly. When the soap turns black, stop heating the metal and allo...
WA
4218 Views

Complete the square of the equation below.

Q. Complete the square : x 2 + 4x - 12A. Completing the square is putting the given equation into the form (x + a) 2 + bFirst, a = the coefficient of x 2so in this case a = 4 = 2 Then to find b we calculate ...
VY
Answered by Victoria Y. • Maths tutor
3399 Views