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a) 4x + 12For this question you must expand out the bracket by multiplying the subjects within by the number at the front. 4x + (4 x 3) = 4x + 12b) x - 13Although this question...
The equation used here is speed = distance / time (s=d/t). Firstly the 30 ms^-1. Rearrange the equation to find distance (st=d). 5ms^-1 x 10s = 50m. The second stint is 6ms^-1 x 5s = 30m. This makes the t...
Adaptations can be split into three categories: behavioural, physiological, and anatomical.Behavioural adaptations are those that change the way an organism acts, such as how it int...
Find the equation of the tangent to the curve y = x2 -3x +5 at the point (1,3).The tangent is a straight line of the form y = mx+cTo find the gradient, m, we first differentiate the function:dy...
The circle of fifths is an expression used to describe the relationship between the twelve chromatic notes of the musical scale (A-G with sharps and flats in between). By using the circle of fifths, you c...
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