B: 2
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The temperature, T° Celsius, of an object, t minutes after it is removed from a heat source, is given by T = 55e⁻⁰·¹ᵗ…
Solve 3ˣ = 200, giving your answer to 2 decimal places.
Find the value of x for which 2lg x – lg(5x + 60) = 1.
Given that a curve has equation y = x² + 64√x, find the coordinates of the point on the curve where d²y/dx² = 0.
The line y = x + 4 intersects the curve 2x² + 3xy − y² + 1 = 0 at the points A and B. Find the length of the line AB.
Given that A = (2 3 / 1 -5) and B = (7 4 / 2 8), calculate 2A,