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Solve the simultaneous equations 3x + y = –4 and 3x – 4y = 6

  1. Label first equation as equation 1 and the second as equation 22) Make y the subject of the equation from equation (1); hence: eq 1 : y = -4 -3x3) Substitute the new equation into equation (2) : 3x-...
MI
Answered by Munachi I. Maths tutor
3021 Views

‘Theatre of the present is not as exciting as theatre of the past’ (30 Marks)

Title of the Play: The BacchaePlaywright: EuripidesDate Seen: 31st July 2016Venue of the Production: Osterley Park I would argue that theatre of the present is more exciting than theatre of the...

JS
Answered by Joseph S. Drama tutor
2260 Views

How does freeze-thaw weathering occur?

Freeze-thaw weather occurs when water enters a small crack in a rock, which often happens during rainfall, then when temperatures fall to below 0 degrees celsius this water freezes and expands. This widen...

EG
Answered by Emily G. Geography tutor
4311 Views

Why is sin(t)^2 + cos(t)^2 = 1 true for all t?

To answer this we need to consider a circle of radius r centred at the origin, drawn in the x,y plane. We'll draw a right-angled triangle such that the hypotenuse is the radius, and say that the point whe...

MV
Answered by Matt V. Maths tutor
3411 Views

(a) Use integration by parts to find ∫ x sin(3x) dx

The question asks for integration by parts. Therefore we need to differentiate one variable and integrate the other. First we need to decide which variable is going to be which. Algebra should always be d...

GA
Answered by George A. Maths tutor
7993 Views

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