Daily Practice - Higher Plus
21st December 1991
- 1Bounds3 marks
A car covers 670 m (to the nearest 10 m) in 3 s (to the nearest second). Work out the lower bound of its speed, to 2 decimal places.
- 2Completing the Square3 marks
Write x^2 - 14x + 3 in the form (x + a)^2 + b.
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 49, y = 28. Work out y when x = 36.
- 4Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = b and vector OB = p. M is the point dividing AB in the ratio 1 : 3. Write vector OM in terms of b and p.
- 5Probability Equation Questions3 marks
The probability of winning a game is 3/4. A player expects 36 wins. How many games did they play?
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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1991, including the monthly compilation PDF.