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Lengths of two sides of the triangle and the angle between them are known. Find the length of the third side and the area of the triangle.

We don't know what type of a triangle we're considering here. Therefore the universal and quickest solution to the first problem is use of the cosine rule, which states that for a triangle with sides a,b and...
SK
8386 Views

Do batteries contain current, which comes out when they are in a circuit?

No; this is a common misconception! Batteries store energy, which is used to push electrons (charges) around a circuit. The flow of electrons is called current. As the electrons flow through the circuit they...
SS
Answered by Samuel S. • Physics tutor
4395 Views

What is anaerobic respiration?

Anaerobic respiration is the release of small amounts of energy in the cells by breaking down food substances in the absence of oxygen.
OB
Answered by Oisin B. • Biology tutor
3247 Views

Solve the equation 4x + 2 = -5x + 20

Algebra is the enemy of many a student, but I'm here to show you that this (and many more concepts in maths!) really aren't that bad. For this problem, we need to group all of the like terms together, that i...
BJ
Answered by Ben J. • Maths tutor
6634 Views

How do I know when a quadratic function crosses the y-axis?

The key thing to remember here is that the y-axis is a straight line and all of the points that lie on it have the x-value of 0. This means that the curve crosses the y-axis when x=0 so you can substitute th...
SR
Answered by Scott R. • Maths tutor
7597 Views