In order to answer this one, it's really really really really helpful if you know what the law of cosines says. In fact it's absolutely necessary.
The law of cosines says if you know two sides of a triangle and the angle between them then you can use that information to find the length of the third side.
In the picture you know the lengths of two sides and you know the angle between them. So you can use the law of cosines to find the length of the third sidethat. That's side AC.
<h3>50-(7•8)+9</h3><h3>You should use BODMAS formula. So, you first solve the bracket portion. </h3><h3>Therefore, 50-(7•8)+9</h3><h3>= 50-56+9</h3><h3>Now you add up the positive integers</h3><h3>=59-56</h3><h3>Now simply subtract it.</h3><h3>=3</h3><h3><em>Your </em><em>answer </em><em>is </em><em>3</em><em>.</em><em> </em><em>Go </em><em>on </em><em>with </em><em>your </em><em>answer.</em></h3>
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Answer:
£25.50
Step-by-step explanation:
I don't know what you mean by multiplier but to find 85% of £30 you do:
10% of 30 which is 3
80% is 24
5% is 1.5 (to find 5% you find 10% then divide by 2)
Now add 24 and 1.5. Do not add the 10% becuase we used it to help the 80%.
24+1.5=25.5
The given, the proposition , the statement column, the reason column, and the diagram if one is given.
