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In the triangle ABC, AB = 16 cm, AC = 13 cm, angle ABC = 50 and angle BCA= x Find the two possible values for x, giving your answers to one decimal place.

Using the sine rule: sina/A = sinb/Bsinx/16 = sin50/13sinx = 16 * (sin50/13)sinx = 0.943x = 70.5 and 109.5

YP
Answered by Yva P. Maths tutor
13631 Views

How can a volcanic eruption be predicted?

Constant monitoring of a volcano is crucial in being able to predict an upcoming eruption. Various technologies are used by volcanic monitoring stations, such as the Hawaiian Volcano Observatory, to detec...

LP
Answered by Lydia P. Geography tutor
4285 Views

Find the general solution of the differential equation: d^2x/dt^2 + 5dx/dt + 6x = 2cos(t) - sin(t)

First solve complementary function, i.e. d2x/dt2 + 5dx/dt + 6x = 0. To do so, let x = emt, where m = arbitrary constant. Differentiating gives dx/dt = m emt and...

MG
Answered by Mick G. Maths tutor
6625 Views

Using the product rule, differentiate: y = (x^2 - 1)(x^3 + 3).

y=(x2-1)(x3+3) ...

Answered by Maths tutor
3692 Views

Describe the causes of the First World War

There were 4 main causes leading to the First World War. Firstly, the immediate cause of the war was the assassination of Archduke Franz Ferdinand in 1914 by the Black Hand organisation of Serbian nationa...

AS
Answered by Aiden S. History tutor
3249 Views

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