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Trigonometry: Find the length of side x on the right-angled triangle.

To answer this question it is best to remember SOH CAH TOA.SOH: sin(angle)=opposite (length of side opposite the angle)/hypotenuse (length).CAH: cos(angle)=adjacent (length of side next to the angle)/hypo...

MK
Answered by Molly K. Maths tutor
4404 Views

What can you see in the photo? What themes are covered?

Example photo: smokingIci, on voit quelqu'un qui fume une cigarette et boit un cafe. Il y a une serveuse qui apporte des boissons sur un plateau. Je pense que le bar est dehors et c'est la nuit. La person...

EC
Answered by Eve C. French tutor
1578 Views

Describe a simple way to distinguish between aqueous solutions of potassium nitrate (KNO3) and potassium sulfate (K2SO4) using one test tube reaction

Add one of the following: barium chloride, barium hydroxide, barium nitrateObservation with potassium nitrate: colourless solution/ or no visible change or reaction) Observation with potassium sulfate: wh...

RS
Answered by Rebecca S. Chemistry tutor
8632 Views

How do you use the 'pluscuamperfecto' and how is it formed?

The 'pluscuamperfecto' is equivalent to the pluperfect in English, here's an example:Ya había comido la cena cuando Juán me llamó.I had already eaten

TC
Answered by Thomas C. Spanish tutor
1698 Views

Describe the conducting system of the heart.

The pacemaker cells of the sino-atrial node in the right atrium generate an impulse.This impulse travels through the atria, causing depolarisation of cardiac muscle cells and atrial contraction.The impuls...

CP
Answered by Calum P. Biology tutor
1147 Views

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